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Programme & Abstracts
International Conference On Advance Infocomm Technology 2008
28 - 31 July, 2008 Da Meisha, Shenzhen, China
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ISBN: 978-1-60558-088-3 This book contains the abstracts of the papers to be presented at the International Conference on Advanced Infocomm Technology 2008. They reflect the authors’ opinions and are pub-lished as presented without change, in the interests of timely dissemination. Their inclusion in this publication does not necessarily constitute endorsement by the organizers. Copyright and Reprint Permission All rights reserved. This book, or parts thereof, may not be reproduced in any form or by any mean, electronic or mechanical, including photocopying, recording or any information storage and retrieval system now known or to be invented, without written permission from the organ-izer. All rights reserved. © 2008 by ICAIT Organising Committee 2008
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Contents
The Committees 2
Session Information 3
Hotel Information 4
Program At-A-Glance 6
Technical Program 8
Abstracts 30
Authors Index 88
Proceedings (CD ROM)
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Local Organising Committee
Conference Chairman Ping Shum Shu Wen Yang Technical Program Chair Peter Chong Raymond Kwan Junxian Ma Gaoxi Xiao Special Session Chair Noel Crespl Jianhua He Publicity Chair Kevin Liu Terence Cheung Tutorial Chair Vineetha Kalavally Maode Ma Local Arrangement Sharis Xia Insong Li Dagang Liu Cixia Jiang
International Advisory Committee
Han-Chieh Chao Junliang Chen Qingquan Chen Hongjia Huang H Ghafouri-Shiraz A. K. Ghatak Anthony TS Ho Gerd Keiser Chinion Lin Jintong Lin Weigan Lin
Shenggang Liu Songhao Liu Zaiping Nie Shuang chen Ruan Dinh Thanh Vu Deming Xu Peida Ye Tak-Shing Yum Liren Zhang Bingkun Zhou
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Session Information
Instructions for Presenters Speakers are requested to be in their respective session rooms at least 10 minutes prior to the commencement of each session. The duration of the presentation slot is 15 minutes. This includes 12 minutes for the presentation itself and 3 minutes for questions form the audience. We could appreciate it if all presenters can adhere strictly to this time limit. Presentation must be carried out using Microsoft PowerPoint. No slide projec-tors will be made available. For speakers using the Microsoft PowerPoint. They should bring their files on a CD ROM or thumb-drive and upload their file from 08:00—08:30hrs daily, dur-ing the daily tea breaks and lunches. Instructions for Session Chairs We provide a small bell in every session room. Please ring a warning bell as fol-lows
•Invited talk: one ring at 10 minutes, two rings at 15minutes •Regular talk: one ring at 10 minutes, two rings at 12 minutes
It is a good idea to warn your presenters at the start of the session that you will be ringing this bell. Please leave this bell in the room for the next chairperson. Please remember the time frame. Keeping the program to time is very important, Please be aware of the time periods (slots) speakers have been designated to pre-sent.
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General Information
Hotel Venue
La Waterfront Hotel Dameisha Beach, East Shenzhen, China 大梅沙海景酒店 盐田区大海沙盐梅路10号
深圳市,中国 Tel: +86-755 2506 1688 Fax: +86-755 2506 1680
Location Map
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Conference Venue Layout
Note: Opening and keynote speeches will convene in the Central Hall. All Session “A”,”B”,”C” will convene in Meeting Rooms A, B C
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Programme At-A-Glance
Monday, 28th July 2008
09.30—17.00 Tutorial Sessions
Tuesday, 29th July 2008
09.00—09.30 Opening Ceremony 09.30—10.10 Keynote Speaker Dr. Tak-Shing Peter Yum , The Chinese University of Hong Kong RFID Technology, Standards and Anti-collision Protocols 10.10—10.45 Morning Tea Break / Poster Session 1A 10.45—11.20 Keynote Speaker Dr. Gerd Keiser , National Taiwan University of Science and Technology Optical Network Concepts for Intelligent Buildings
Tuesday, 29th July 2008
11.20—12.30 Session 1-1 12.30—14.00 Lunch Session 14.00—15.40 Session 1-2 15.40—16.20 Afternoon Tea Break / Poster Session 1B
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Programme At-A-Glance
Wednesday, 30th July 2008
08.30—10.30 Session 2-1 10.30—11.00 Morning Tea Break / Poster Session 2A 11.00—12.40 Session 2-2 12.40—14.00 Lunch Session 14.00—16.00 Session 2-3 16.00—16.30 Afternoon Tea Break / Poster Session 2B
Thursday, 31st July 2008
08.30—10.15 Session 3-1 10.15—15.00 Technical Tours in Shenzhen Visit to local industries in Shenzhen
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Technical Programme Session 1 - 1 (11.20 – 12.30) 29th July 2008 Central Hall 11.20—11.40 Invited Speaker Wiktor Piecek, Institute of Applied Physics, Military Orthoconic Antiferroelectric Liquid Crystals for Multimedia LCD’s 11.40—12.00 Invited Speaker Yow Kin Choong, Nanyang Technological University
Multihop Wireless Networks with Infrastructure Support (MWNIs): Extending the coverage of WLANs with multihop networks
Room A 11.20—11.40 Invited Speaker Claudio DeSanti, Cisco Systems The Role of FCoE in I/O Consolidation & FCoE in Perspective 11.40—12.00 Invited Speaker Jiang Joy, Finisar Corporation The Role of FCoE in I/O Consolidation & FCoE in Perspective 12.00—12.15 Oral 1-1A- 1
Temperature Dependent Saturation Characteristics of Wavelength Locked Febry-Perot Laser Diodes
Hongyun Meng, Chang-Hee Lee 12.15—12.30 Oral 1-1A- 2
Using Sub-Sampled Bragg Grating En/decoder to Achieve 2.5Gbps 60km OCDM Transmission Experiment
Tao Pu, Lin Lu, Xiangfei Chen,Yuquan Li Room B 11.20—11.40 Invited Speaker Jiang Shengming, South China University of Technology
A Roadmap for Realizing All-optical Packet Switching: A Network Architecture Perspective
11.40—12.00 Invited Speaker Lee El-Hang, INHA University
Micro.Nano-Scale Optical Network: A New Challenge toward Next Generation
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12.00—12.15 Oral 1-1B-1 A Novel Superframe Structure with Cognitive Radio Capability in Wireless Home Network Byunghwa Lee, Namkoo Ha, Jeongbae Yun, Jangkyu Yun, Kijun Han
12.15—12.30 Oral 1-1B-2 A New Superframe Scheme to Reduce Delay
Jangkyu Yun, Byeongjik Lee, Junhyung Kim, Byunghwa Lee, Kijun Han
Room C 11.20—11.40 Invited Speaker Chen Hongwei, Tsinghua University
Optical methods for millimeter-wave signal generation in ROF systems
11.40—12.00 Invited Speaker Chen Xiangfei, Nanjing University
A model for novel distributed feedback lasers and monolithic integration laser arrays based on reconstruction equivalent chirp technology
12.15—12.30 Oral 1-1C-2 Load Balancing for Efficient Routing in Wireless Sensor Networks
Minho Choi, Sooyeol Yang, Namkoo Ha, Honggil Lee, Jilong Li, Kijun Han
Session 1 - 2 (14.00 – 15.40) 29th July 2008 Room A 14.00—14.20 Invited Speaker Chiang Kin Seng, City University of Hong Kong
Development of optical polymer waveguide devices for application in optical communication
14.20—14.40 Invited Speaker Chung Ghiu Lee, Chosun University Radio-over-Fiber system based on Stimulated Brillouin Scattering 14.40—14.55 Oral 1-2A-1
Grooming of Traffic Using Improved Evolutionary Algorithm in Universal Optical Network
Yishi Han
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14.55—15.10 Oral 1-2A-2
The Least Number of Degrees of Freedom for a Polarization Controller in Each Stage of PMD Compensator
Xiaoguang Zhang, Gaoyan Duan, Lixia Xi 15.10—15.25 Oral 1-2A-3
Design of UV-Photosensitive Highly Dispersive Photonic Crystal Fiber
Berger Perrine, Kaba Myriam, Nam Quoc Ngo, Li Xia, Xia Yu, Ping Shum, Chazelas Jean, Huignard Jean-Pierre 15.25—15.40 Oral 1-2A-4
Stimulated Brillouin Scattering of Various Specialty Fibers And its Application in Slow Light Changyong Tian, Chongqing Wu, P.Shum, Li Xia, Songnian Fu, Ning Guo
Room B 14.00—14.20 Invited Speaker Chung Youngjoo, Gwangju Institute of Science and Technology Tunable multiwavelength fiber lasers using fiber Bragg gratings 14.20—14.40 Invited Speaker Dong Xinyong, China Jiliang University
Chirped fiber grating-based Fabry-Perot filters and their applications
14.40—14.55 Oral 1-2B-1 MUI-Free Multicarrier CDMA Xiang Gui 14.55—15.10 Oral 1-2B-2
Design of Dual-Band Frequency Selective Surfaces with Gridded-Square Elements
Luo Xingfang, Lee Ching Kwang 15.10—15.25 Oral 1-2B-3 Optimized Call Admission Control in Wireless Networks Shengdong Xie, Meng Wu 15.25—15.40 Oral 1-2B-4
Scalable Dynamic Power Control Model for Wireless Mesh Networks Olwal, T., van Wyk, B. J, Hamam, Y., Aron, F. Room C
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14.00—14.20 Invited Speaker Fang Xiao-Hui, The Hong Kong Polytechnic University
Fabry Perot Laser diode for pulse generation and it's other applications
14.20—14.40 Invited Speaker Feng Xinhuan, The Hong Kong Polytechnic University Development of multiwavelength fiber lasers and their applications 14.40—14.55 Oral 1-2C-1
Optimization of BER performance for UWB non-coherence receiver Wang Ye, Zhihuang Yang, Qinyu Zhang 14.55—15.10 Oral 1-2C-2 Neural Network Based Audio Signal Denoising
Yongjian Chen, Masatake Akutagawa, Qinyu Zhang, Yohsuke Kinouchi
15.10—15.25 Oral 1-2C-3 Study of ultra wideband pulse propagation in slab Meng Jing 15.25—15.40 Oral 1-2C-4 New Vertical Handoff Algorithm Based on Hysteretic Level Shengdong Xie, Meng Wu Session 1 - 3 (16.20 – 18.00) 29th July 2008 Room A 16.20—16.40 Invited Speaker Guan Bai-Ou, Dalian University of Technology Fiber Grating Laser Sensors 16.40—17.00 Invited Speaker Ian H White, University of Cambridge
Capacity Limits of Datacommunication Links using Multimode Optical Fiber
17.00—17.15 Oral 1-3A-1
A radio-over-fiber system with photonics generated OFDM signals and wavelength reuse for upstream data connection
Lin Chen, Jianjun Yu, Jia Lu, Ze Dong 17.15—17.30 Oral 1-3A-2
A Novel Full-Duplex Radio-over-Fiber System with Photonics
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Frequency Quadruple for optical millimeter wave generation Jing He, Lin Chen, Shuangchun Wen, Ze Dong, Jia Lu, Jianjun Yu 17.30—17.45 Oral 1-3A-3
Dynamically Survivable WDM Network Design with Shared-Cycle-Based PWCE
Zhenrong zhang, An shi Xu, Yongqi He 17.45—18.00 Oral 1-3A-4
Optimal Design of Tunable Parametric Wavelength Converters Based on Degenerated Four-Wave Mixing in Optical Fibers
Sheng Cui, Deming Liu, Yin Wang Room B 16.20—16.40 Invited Speaker Wei Jin, The Hong Kong Polytechnic University Photonic bandgap fiber components and sensors 16.40—17.00 Invited Speaker
Kun Qiu, University of Electronic Science and Technology of China Optical Packet Switching With Multi-Optical-Codes Label 17.00—17.15 Oral 1-3B-1 Pulse Shape Adaptivity in OFDM/OQAM Systems Jinfeng Du, Svante Signell 17.15—17.30 Oral 1-3B-2
Preemptive Two-Level Priority Real-Time Scheduling Strategy for Node System in Wireless Sensor Network
Lan Yao, Zhuoyue Li, Fuxiang Gao 17.30—17.45 Oral 1-3B-3
Minimizing Point-to-Point Transmission Energy with Error Correction Coding and Transmission Power Control
Junjun Gu, Aihong Yao, Gang Qu, Ahmed Bouridane 17.45—18.0 Oral 1-3B-4 Dynamic Channel Assignment in Wireless LANs Bo Wang, William Wu, Yongqiang Liu Room C 16.20—16.40 Invited Speaker Liu Deming, Huazhong University of Science and Technology Novel Hybrid WDM & TDM Passive Optical Network based on Gain-clamped Wavelength Converter 16.40—17.00 Invited Speaker
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Naoya Wada, National Institute of Information and Communications Technology
Optical code processing and its application to photonic networks 17.00—17.15 Oral 1-3C-1
Comparison of NRZ and RZ Modulations in Laser Intersatellite Communication Systems
N. Liu, W. D. Zhong, Y. He, K.H. Heng, T. H. Cheng 17.15—17.30 Oral 1-3C-2 A Cross-layer Concurrent Multi-path Forward Algorithm Laiquan Han, Jinkuan Wang, Cuirong Wang 17.30—17.45 Oral 1-3C-3
The environmental quality evaluation of Qinhuangdao Port regional Based on BP Neural Network and PSO
Weijun Wang, Dongxiao Niu, Qingchao Liu 17.45—18.0 Oral 1-3C-4
Color Consistency in Digital Camera Color Reproduction Based on Machine Learning
Li Xinwu Session 2 - 1 (08.30 – 10.30) 30th July 2008 Room A 08.30—08.50 Invited Speaker Liu Yunqi, City University of Hong Kong
Broadband optical couplers based on parallel long-period fiber gratings
08.50—09.10 Invited Speaker Liu Yan-ge, Nankai University Microstructured optical fiber gratings and their application 09.10—09.30 Invited Speaker Su Yikai, Shanghai Jiao Tong University A 100-Gb/s system with large tolerance to dispersion and PMD 09.30—09.45 Oral 2-1A-1
Investigation on Mechanical Strength and Lifetime of PANDA Polarization-maintaining Fibers Fabricated by PCVD Method
Honghai Wang, Jing Li, Feng Tu, Hongbo Wei, Song Wang
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09.45—10.00 Oral 2-1A-2 A Novel Radio-Over-Fiber System Architecture with Bi-directional Fiber Transmission for Full-Duplex Connection
Ze Dong 10.00—10.15 Oral 2-1A-3
Multiwavelength Semiconductor Optical Amplifier Based Fiber Ring Laser
Tse Chun Ho 10.15—10.30 Oral 2-1A-4
10Ghz Wavelength Tunable Active Mode-Locked Fiber Ring Laser Based on Semiconductor Optical Amplifier Shuangyi Yan, Jian-Guo Zhang, Wei Zhao, Hongqing Lu, Weiqiang Wang
Room B 08.30—08.50 Invited Speaker Tang Jian Ming, Bangor University Optical OFDM for High-Speed Networks 08.50—09.10 Invited Speaker Zhang Chun Min, Xi’an Jiaotong University Novel polarization interference imaging spectroscope 09.10—09.30 Invited Speaker Jin Yaohui, Shanghai Jiao Tong University
SOA-Based Inter-Domain OVPN Service for Coordinated Scheduling of Distributed Computing
09.30—09.45 Oral 2-1B-1
Fairness-based Scheduling Algorithm for TDD Mode IEEE 802.16 Broadband Wireless Access Systems
Sheng-Tzong Cheng, Bafu Chen 09.45—10.00 Oral 2-1B-2 Energy Proportion Analysis of Cooperative Transmission Protocols Tuanfa Qin, Hui-ping Luo, Su-yun Liao 10.00—10.15 Oral 2-1B-3
The design of band-stop filter with Jerusalem-cross periodic array with four additional circular rings
Yang Huaqiang, Luo Xingfang 10.15—10.30 Oral 2-1B-4
Predictive receive-directed antenna selection for quasi-static Rayleigh
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fading channel Ian McLoughlin, Shiva Prakash.P Room C 08.30—08.50 Invited Speaker Wong Elaine, The University of Melbourne Techniques in Local Area Internetworking in Access Networks 08.50—09.10 Invited Speaker Xiang Gui, Massey University MIMO-OFDM under Nonlinear Channel Distortions 09.10—09.30 Invited Speaker Yang Xiufeng, Institute for Infocomm Research
Progress In Fiber Cavity Ring Down Spectroscopy For Ultrasensitive Detection
09.30—09.45 Oral 2-1C-1
Load Balancing Model based on Stackelberg Game for Multi-homing in Heterogeneous Radio Access Networks
Tang Lun 09.45—10.00 Oral 2-1C-2
A Multistage Interpolation Design Of An Audio DAC Kun Qin, Tiejun Lu, Zongmin Wang, Du Xiao, Bingmin Luo 10.00—10.15 Oral 2-1C-3 Research of PWM Drive Method for High Gray Scale TFT-LCD Ran Feng, Yao Rui-peng, Tang Zhi-jie, Xu Mei-hua 10.15—10.30 Oral 2-1C-4 Design and Analysis of bi-directional pumping silicon Raman laser Ying Huang, Ping Shum, John H. Lau, Ming Tang, Jing Zhang Session 2 - 2 (11.00 – 12.40) 30th July 2008 Room A 11.00—11.20 Invited Speaker
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Yao Jianping, Ottawa-Carleton Institute for Electrical and Computer Engineering Microwave Photonics Research Laboratory University of Ottawa
Microwave photonics 11.20—11.40 Invited Speaker Yeung Lawrence, The University of Hong Kong Preconfigured Structures for Survivable WDM Networks 11.40—11.55 Oral 2-2A-1
Study of the Method of Steam Wetness Measuring by Laser Scattering Devices
He Guizhen, Liu Haibo, Zhou Huimin, Mei Chengqiang 11.55—12.10 Oral 2-2A-2
Super-High Speed Fiber Optical Communication System Design and Simulation
Kaikai Xu, David Cheng, Xingfa Huang 12.10—12.25 Oral 2-2A-3
A Tunable Lyot Birefringent Filter with Variable Channel Spacing and Wavelength Using Nonlinear Polarization Rotation in an SOA
Songnian Fu, P.Shum, Minxue Wang 12.25—12.40 Oral 2-2A-4
Frequency Sixupler for Millimeter-Wave Signal Generation and Transmission in Radio-over-Fiber Systems
Mohmoud Mohamed, Xiupu Zhang, Bouchaib Hraimel, Ke Wu Room B 11.00—11.20 Invited Speaker Li Xuejin, Shenzhen University
Micro-bending Optical Fiber Sensors and Their Applications 11.20—11.40 Invited Speaker Zhang Xinliang, Huazhong University of Science and Technology
Towards All-optical Logic Circuits: All-optical Minterms for Multi-input Differential Phase Shift Keying Signals
11.40—11.55 Oral 2-2B-1 Acoustically-induced Mode-coupling in Photonic Crystal Fibers Jian Ju, K.S. Hong, Wei Jin 11.55—12.10 Oral 2-2B-2 Real-time Distributed All-fiber Strain-sensing System
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Yiming Zhong, Qing Shi, Tongtong Zhang, Shutong Zhou, Fuyun Lv 12.10—12.25 Oral 2-2B-3
Long Period Grating Glucose Sensor Based on Sol-gel Entrapment Technique Zhang Y.F., Chan C.C., Sun J, Zheng L.T., Ho H. L., Dong X. Y., Shao L. Y.
12.25—12.40 Oral 2-2B-4
A NSE Based Real-time Hybrid Simulation Approach for Ad hoc Network
Zhao-feng Zhang Room C 11.00—11.15 Oral 2-2C-1
Energy-Efficient Clustering for Ad-Hoc Transmission in Wireless Sensor Networks
Gurpreet Singh, Rashmi Gupta, Gaoxi Xiao 11.15—11.30 Oral 2-2C-2
Energy-Aware and Level-Distribution Routing Protocol in Ad Hoc Networks
Shi Zheng, Weiqiang Wu, Qinyu Zhang 11.30—11.45 Oral 2-2C-3
Study of Improved Key Distribution Mechanisms Based on Two-layer Structure for Wireless Sensor Network Kaiping Xue, Mingxiu Hu, Peilin Hong, Hancheng Lu, Chan Guo, Yuan Zu
11.45—12.00 Oral 2-2C-4
Partitioning and Merging of VASM protocol for IP Address Auto-Configuration in MANETs
Majid taghiloo 12.00—12.15 Oral 2-2C-5
Energy-Based Selective Cluster-head Rotation in Wireless Sensor Networks
Fengming Hu, Hee Yong Youn 12.15—12.30 Oral 2-2C-6 NS-2 Modelling And Evaluation on Topology Control Vince Chook, D.T.W Liang, Y.F Hu
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Session 2 - 3 (14.00 – 16.00) 30th July 2008 Room A 14.00 – 14.15 Oral 2-3A-1
Novel Approaches to improve the capacity of Optical Packet-switched Networks without Optical Buffers
Chi Yuan 14.15 – 14.30 Oral 2-3A-2
A LOW REPETITION RATE PASSIVELY MODE-LOCKED FIBER LASER Xiaolong Tian, Ming Tang, Ping Shum, Yandong Gong, Peichyi Tang
14.30 – 14.45 Oral 2-3A-3 Pulse Propagation Analysis in Optical Fibers by 3D FDTD Method Juan Juan Hu, Ping Shum, Chao Lu 14.45 – 15.00 Oral 2-3A-4
Tilted Fiber Bragg Grating-Based Single Polarization Yb3+-Doped Fiber Laser
Xueping Cheng, Ping Shum, Junqiang Zhou 15.00 – 15.15 Oral 2-3A-5
Discussion of Sizing and Capacity Planning of Server Resource for a Mass Data System
Zhaoxia Lu, Jie Xi, Jiren Liu 15.15 – 15.30 Oral 2-3A-6 The Personal Tour Planning Engine Based on Genetic Algorithm Chuanchang Liu, Junliang Chen 15.30 – 15.45 Oral 2-3A-7
O3-SAN based on resource joint scheduling model in service-oriented optical networks
Xiuzhong Chen, Jie Zhang, Wanyi Gu 15.45 – 16.00 Oral 2-3A-8
A Markov-based Decision Process Model for Wireless Access Agent Hao Chen Room C 14.00 – 14.15 Oral 2-3C-1
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An Adaptive Approach of IDS Alert Verification for Collaborative Design
Xuejiao Liu, Debao Xiao, Xin Zhuang 14.15 – 14.30 Oral 2-3C-2
Virtual Address Space Mapping for IP auto-configuration in MANET with security capability
Majid taghiloo 14.30 – 14.45 Oral 2-3C-3 Polarization Maintaining Air-core Bandgap Terahertz Fiber
Guobin Ren, Yandong Gong, Ping Shum, Xia Yu, Juanjuan Hu, Guanghui Wang
14.45 – 15.00 Oral 2-3C-4 THz time-domain study of far infrared dielectric response in 5% MgO:LiNbO3 ferroelectric crystal
Guo Hongchen, Tang Sing Hai 15.00 – 15.15 Oral 2-3C-5
Frequency Tuning and Linewidth Study of THZ Quantum Cascade Lasers Jihua Xu, R. Green, A. Tredicucci, F. Beltram, David B. Fenner, Joel M. Hensley, Harvey E. Beere, David A. Ritchie
15.15 – 15.30 Oral 2-3C-6
Research on Pure Bending Characteristic of Tilted fiber Bragg graing Yinping Miao, Bo Liu, Qida Zhao 15.30 – 15.45 Oral 2-3C-7
Optical Fiber Sensor for Localizing Heating Positions in Multiple Points Using Multichannel Gratings with Phase Sampling and Wavelength Division Multiplexing Techniques
Li Xia 15.45 – 16.00 Oral 2-3C-8
The Application of FBG Sensors to Monitoring System of Wuhan Yangluo Bridge’s Anchorage System
Liu Sheng-chun, Jiang De-sheng Session 2 - 4 (16.30 – 18.00) 30th July 2008
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Room A 16.30 – 16.45 Oral 2-4A-1
Stream-analysis-based Intelligent TV Content Personalization System for Digital Television Terminals
Jingteng Xue, Li Zhao, Xin Wei 16.45 – 17.00 Oral 2-4A-2 Fast Implementation of Cel-based Animation Man Qi 17.00 – 17.15 Oral 2-4A-3
Study on Error Concealment Technology for Mobile Spatial Digital Audio
Cong Zhang, Rui-min Hu 17.15 – 17.30 Oral 2-4A-4
Research on Passenger Information System Security Management of the Subway
MiaoJian, He Deqiang, Zhang Zhenrong 17.30 – 17.45 Oral 2-4A-5
Energy Efficient Implementation of G.729 for Wireless VoIP Applications
Junjun Gu, Gang Qu, Shuvra B. Bhattcharyya 17.45 – 18.00 Oral 2-4A-6 Spectrum Sensing Based on Cyclostationarity Shiyu Xu, Zhijin Zhao, Junna Shang Room C 16.30 – 16.45 Oral 2-4C-1
A Highly Sensitive Refractive-Index Sensor Based on the Long-Period Grating Pair with a Fiber-Taper In-between
Jinfei Ding, Liyang Shao, Hong Su, Shuangchen Ruan 16.45 – 17.00 Oral 2-4C-2 New Concept Photosensitive Fiber Feng Tu, Deming Liu, Jie Luo 17.00 – 17.15 Oral 2-4C-3
Simultaneous Measurement of Strain and Temperature with Polarimetric DBR Fiber Laser Sensor
Li-Yang Shao, Xinyong Dong, Hwa-Yaw Tam 17.15 – 17.30 Oral 2-4C-4
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Temperature Wireless Sensors Network Based on Fiber Bragg Grating
Bo Liu, Haibin zhou, Junhao Tao, Yange Liu 17.30 – 17.45 Oral 2-4C-5 Signal Detection in Complex Electromagnetic Environments Yalin Zhang 17.45 – 18.00 Oral 2-4C-6
Integrated Radio Resource Management Strategy for MIMO-OFDM System on Cross-layer Architecture
Fengchen, Lixu, Tan Zhenhui Session 3 - 1 (08.30 – 10.30) 31st July 2008 Room A 08.30 – 08.45 Oral 3-1A-1
Robustness of Complex Communication Networks under Link Attacks
Yubo Wang, Gaoxi Xiao, Tee Hiang Cheng, Shi Xiao, Xiuju Fu 08.45 – 09.00 Oral 3-1A-2
Handover Strategy of Smart Mobile Terminals among Heterogeneous Wireless Networks
Wei Lin, Weiqiang Wu, Qinyu Zhang 09.00 – 09.15 Oral 3-1A-3
The Research of PSK Modulated Signal Using The Improved IJF Pulse
Haiqiang Chen, Tuanfa Qin, Zhenrong Zhang 09.15 – 09.30 Oral 3-1A-4
Parallel Algorithm of MCQoS Routing Based on Improved PSRS and Binary Search
Linfeng Yang, Jinbao Jian, Taoshen Li, Zhenrong Zhang 09.30 – 09.45 Oral 3-1A-5 Bandwidth Limiter Shahid Habib, Ahmad Yazdan Javaid, Mohammad Abdul Qadeer 09.45 – 10.00 Oral 3-1A-6
AOMPG: An Agent Based OpenMP Programming Environment for GRID
Mostafa Ghazizadeh, Hosein Deldari
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10.00 – 10.15 Oral 3-1A-7 New Rate-Compatible Algebraic Codes for Loss Recovery in Data Networks
Zhi-Min Yang
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Poster Session
Session 1-A Time: 10.10--10.45 P1A-1 Evanescent Field Absorption Detection in Aqueous Solutions using
Microstructured Optical Fibers Xia Yu, Ping Shum, Songnian Fu, Guobin Ren, Yien Chian Kwok
P1A-2 Photonic Ultra-Wideband Monocycle Pulse Generation Using a Single
Electro-Optic Modulator Songnian Fu, Jianqiang Li, P.Shum
P1A-3 Four-Wave Mixing-Based Phase Sensitive Amplification with Pulsed Signal Input
Xiaosheng Xiao, Ping Shum P1A-4 Measurement of Polarization Mode Dispersion with Polarization Dependent Loss Using Flexible Input Mueller Matrix Method J. Q. Zhou P1A-5 Passively Mode-locked Fiber Ring Laser with Large Normal Net
Dispersion Tian Xiaolong, Tang Ming, Shum Ping
P1A-6 Investigation of Nanosize Waveguide and Nanofiber Coupler
WANG Guanghui, SHUM Ping, Ren Guobin, YU Xia, HU Juanjuan P1A-7 Dispersion Effects in Active Mode-locked Fiber Lasers
Huy Quoc Lam, P. Shum, Le Nguyen Binh, Y. D. Gong, Songnian Fu, Ming Tang
P1A-8 Average Power Control Algorithm with Dynamic Channel Assignment for TDD-CDMA Systems Zheng Zhihua, Xu He, Wu Jianhua P1A-9 High Resolusion Long-Period Grating Temperature Sensor
L. H. Chan, C. C. Chan, J. Sun
P1A-10 Hybrid Fiber Grating-Based Optical Comb Filters Xinyong Dong, Li-Yang Shao, Hwa-Yaw Tam, P. Shum
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P1A-11 Optical Buffer System with Service Differentiation Capability in Optical Packet Switching Network – Implementation, Modeling and Analysis Xuguang Shao, Ping Shum, Liren Zhang P1A-12 Effect of Path Diversity on the loss performance of UDP Packets under varying network conditions Richard Haywood, Xiao-Hong Peng
P1A-13 An Iterated Channel Estimation and Tracking Scheme for Space-Time Code Systems
Zhenghang Yan, Yilong Lu, Maode Ma, Yuhang Yang
P1A-14 Matrix-based Polarization Analysis and Application of Semiconductor Optical Amplifiers
Zhengyong Li, Chongqing Wu, Ping Shum, Hui Dong
P1A-15 A Flooding Strategy for Data Delivery in Mobile Sensor Networks Ick-Soo Lee, Honggil Lee, Keuchul Cho, Youngmi Baek, Kijun Han
Session 1- B Time: 15.40--16.20 P1B-1 First Demonstration on All-Optical 40 Gbit/s Logic AND Gate for Carrier-Suppressed Return-to-Zero Signals Jian Wang P1B-2 Design and Analysis of Distributed Raman Temperature Sensing System Based on Single-mode Fiber Sun Zhifeng P1B-3 Transmission characteristic of double-couplers cascade nonlinear optical loop mirror Fuxiang Qin, Qiuqin Sheng, Ning Guo, Junjie Zhang P1B-4 Analysis of series-coupled racetrack microring resonator arrays with DNA-CTMA Jun Zhou, Zhenyong Wang, E. Y. B. Pun P1B-5 Analysis for the Characteristics of Non-uniform Sampled Fiber Grating X. J. Zhang, Z.Q.Ye P1B-6 Experimental Investigation of Nonlinear Effects of Submicro-Diameter Optical Fiber
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Z.Q.Ye, X.J.Zhang, H.J.Liu P1B-7 Synthesis of Fluorinated Polymers with Reversible Addition-fragmentation
Chain Transfer (RAFT Polymerization) and their Properties Ti Wu
P1B-8 A Secure Identity-Based Threshold Signature Scheme from Tate Pairings Zhou Hong P1B-9 TOA Estimation for UWB through-wall Application Ma Lin, Zhang zhongzhao, Tan Xuezhi P1B-10 A New Algorithm of Region Labeling Based on Improved RLE Connectivity Analysis Tao Hu P1B-11 RARE-Cumulant Algorithm for Direction of Arrival Estimation and Array Calibration Xinbo Li, Yaowu Shi, Han Zhang P1B-12 Design and Fabrication of Highly Nonlinear Photonic Crystal Fiber Liu hairong P1B-13 A Congestion Control algorithm of Fuzzy Control in Routers Xu Changbiao, Li Fengfeng P1B-14 Hybrid ARQ Technique Employing a Signal Constellation Rearrangement Based on 256-QAM
Bin Pang, Xian-hua Dai, Han Zhang, Chang-juan Chen, Jian-qiang Liao, Zhou Xiao
P1B-15 Chirped Sampled Fiber Bragg Grating Based Multi-Wavelength Fiber Ring Laser
Sun Qizhen P1B-16 Tunable Mechanically Induced Long-Period Fiber Gratings Based on Periodic Pressure grooves Jiang ming-shun, Feng de-jun, Sui qing-mei P1B-17 An Adaptive Watermarking Scheme Based on Nonsubsampled Contourlet
Transform for Color Image Authentication Liu dongyan
P1B-18 An Analysis and Implementation Study on a Robust Congestion Controller
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for the Internet Li Yu, Yantai Shu, Maode Ma, Ming Tang, P1B-19 Mobile Agent Migration Mechanism and Load Testing for Distributed System Yang Xu P1B-20 A Local Time Fukunage-koontz Transformation for Speech Emotional
Recognition Zhao Yan
Session 2- A Time: 10.30--11.00 P2A-1 An Effective Routing Game for Ad Hoc Networks
Qin danyang, Sha Xuejun, Xu Yubin P2A-2 Highly Birefringent All-Solid Photonic Bandgap Fiber with an Array of Oriented Rectangular High Index Rods
Qing Shi, Zhi Wang, Fuyun Lv, Guiyun Kai, Yinping Miao, Haibin Zhou, Xiaoyi Dong
P2A-3 Passive Q-Switched Dynamics in All-Fiber Lasers with ring interferferometer Lin Huang P2A-4 Foreground Detection Based on Motion Vector from Compressed Video Zhu leiqi, Xue Ping, Zhang Qishan P2A-5 Clustering with Case-based Reasoning for wireless sensor network Wang Yaqiong P2A-6 High-performance Multi-level Single-phase AC/DC PFC Gao Chao P2A-7 Field emission from K doped multi-walled carbon nanotubes Sun jianping P2A-8 Field Emission From Tungsten Carbide on W Tips Sun jianping P2A-9 Research of Factors for the Response of LCDs Zhang Fanghui, Yang Dan, Wang Xiufeng
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P2A-10 Influence of Hole Transport Layer NPB on Performance of OLED Qiang Mu P2A-11 A Novel Fiber Laser Based Fiber Bragg Grating Strain Sensor with High-
Birefringence Sagnac fiber loop Mirror Xu Ou, Lv Bo, Lu Shaohua, Feng Suchun, Jian Shuisheng
P2A-12 Performance Evaluation of Polarization Diversity and Space Diversity under 3GPP Channel Model Qing Wang, Chunping Hou, Yilong Lu, Zhenghang Yan, Ning Liu P2A-13 Broad-Band Tunable Wavelength Converter Based on Degenerate
Four-Wave Mixing in a Highly Nonlinear Photonic Crystal Fiber Jianguo Liu
P2A-14 Combined Resource Allocation for Multi-user OFDM System Fengchen, Lixu, Tan Zhenhui P2A-15 The Linearity Compensation Circuit Design of Wide-Ranged And
Accurate Temperature Measurement Using Thermocouple Fanganan
P2A-16 A Curvature-Compensated Bandgap Reference with High PSR Yu Jian P2A-17 Application Research of an LFB Management and Development Model in ForCES Router Ke Chen, Ligang Dong P2A-18 Research on Grid Resource Discovery Mechanism Based on Resource Clustering Chen Jing, Liu mingxin P2A-19 A Study on Gigabit Laser Driver Circuit with RC Shunt Circuit for LD Current Waveform Correction Takahiro Emoto, Shinsuke Konaka, Masatake Akutagawa, Yohsuke KInouchi P2A-20 Study on Multicarrier Spread Spectrum in PLC WANG Cui-ru, YU Xiang-bing
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Session 2- B Time: 16.00--16.30 P2B-1 Blind Identification of Digital Communication Signals Based on Statistics of Directional Data LU Man-jun, ZHAN Yi, SI Xi-cai P2B-2 Performance Investigation of CDMA/RPMA with Power Control in TDD Multimedia Cellular Networks Xue Jun Li, Peter Han Joo Chong P2B-3 Single Polarization Guidance in Liquid-Crystal Photonic Bandgap Fibers
Sun Jian, Chan Chi Chiu, Zhang Yi Fan P2B-4 All-Optical PPLN-based Tunable NRZ-to-RZ and NRZ-DPSK-to-RZ-DPSK Format Conversions Jian Wang P2B-5 Analysis and Evaluation of Fieldbus Communication and Protocol Static Characteristic Gao hongwei, Tong weiming P2B-6 A Hierarchical Networking Architecture Based On New Switching Address Jinxin Zhang, Mangui Liang P2B-7 Kerr-like Nonlinearity Induced via Terahertz Generation in Periodically Poled LiNbO3 Hong Su P2B-8 Simultaneous Measurements of Temperature and Strain Based on TFBG Zhang Weihua P2B-9 Highly Sensitive Thz-Wave Detection Using Parametric Up-Conversion RIKEN Sendai P2B-10 Chirp Tuning of a Dual-wavelength Fiber Bragg Grating by Using a Loop Thin-wall Section Beam
Guiling Huang, Qida Zhao, Meng Jiang, Lifang Xue, Yinping Miao,Songfen Liu
P2B-11 The Research on a Novel Addressing Technique for Fiber Bragg Grating Sensor Array Li Ruo-ming, Yu You-long
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P2B-12 Green Organic Light-Emitting Diodes with Improved Stability and
Efficiency Utilizing 9,10-di (2-naphthyl) anthracene as the Host Material Hao Tang, Xiuru Wang, Runguang Sun
P2B-13 Multilevel Power Adjustment for Wireless Sensor Networks Sheng-Tzong Cheng, Mingzoo Wu, Jiashing Shih P2B-14 ES-MAC: Research on Enhanced S-MAC Technology Xu Changbiao, liu lin P2B-15 A Simple Iterative Algorithm to Achieve Utility Proportional Fairness Jian Zhao, Jintao Meng P2B-16 Luminescence Mechanism of Polymer Light-Emitting Devices with MEH-PPV:PVK Emitting Layer Zhang Fanghui, Yang Dan P2B-17 Fractal Scan IP Core for the FPD Grey Scale Controller XU Meihua, RAN Feng, CHEN Zhangjin P2B-18 Enhanced Sensitivity Refractive Index Sensor Using Tilted Fiber Bragg Grating with Thinned Cladding Miao Yinping P2B-19 Synthesis of Fiber Bragg Grating Parameters from Reflectivity Guiling Huang, Luming Zhao, Yinping Miao, Qinchang Tu, Songfen Liu, Qida Zhao P2B-20 Novel Method of Chirped Fiber Bragg Grating Optimization for 40Gbps Optical Transmission Bo Lv, Ou Xu, Shuisheng Jian
Abstracts
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SPEAKERS INFORMATION
I shall first introduce RFID technology and its various applications. I then survey the popular EPCglobal standard on RFID. The communication problem between tags and readers in RFID is called anti-collision mechanism. I will show that the anti-collision mechanism in RFID is fundamentally different from random access mechanism in WLAN. After introducing a model, methods for computing the optimal reply probability and optimal reply order are presented for static and dynamic protocols. Performance bounds are derived and protocol efficiencies are compared.
RFID Technology, Standards and Anti-collision Protocols
Tak-Shing Peter Yum The Chinese University of Hong Kong
Optical Network Concepts for Intelligent Buildings
Gerd Keiser National Taiwan University of Science and Technology
Communication networks for building control traditionally have been organized into autono-mous subsystems such as lighting, security, and environmental controls. As buildings are be-coming increasingly automated and intelligent, these independent subsystems are being merged to deliver integrated services. Although the operational requirements for an intelligent building network are straightforward, the actual implementation becomes quite complex when factors such as the response of the network to emergency conditions, methods for rapid and reliable network reconfigurations, information security, and network monitoring are taken into account. This talk will address some of these questions from the viewpoint of using a WDM PON as an intelligent building network.
KEYNOTE SPEAKERS
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A novel semiconductor DFB laser based on reconstruction equivalent chirp (REC) technology is studied and corresponding monolithic integration laser arrays are modeled. The proposed technology may pro-vide a lower-cost and very flexible way to fabricate high quality DFB lasers and monolithic integration laser arrays. Moreover, the business model for the applications of the technology is also discussed.
A model for novel distributed feedback lasers and monolithic integration laser arrays based on recon-
struction equivalent chirp technology Chen Xiangfei
Nanjing University
Optical methods for millimeter-wave signal generation in ROF systems
Chen Hongwei Tsinghua University
Millimeter-wave signal with frequency multiplication of a microwave source is obtained by double-sideband suppressed-carrier modulation in optical intensity modulators and four wave mixing effect in semiconductor optical amplifier. These simple approaches are able to generate signals of double-, quad-ruple-, sextuple-, twelve times or even eighteen times microwave source frequency with extremely high spectral purity and stability given in this paper. Moreover, since the power of the generated millimeter wave signal is irrelevant to the frequency of the microwave source, the frequency multiplication signal has quite good gain flatness. And the phase noise performance of the generated millimeter-wave is in-vestigated. No broadening of the electrical linewidth could be observed after propagation through 20 km of standard single mode fiber. So a wideband continuously tunable microwave or mm-wave signal can be easily generated and distributed over fiber. Up to 1.25Gb/s data rate radio over fiber systems are car-ried out to test the performance of our proposed schemes.
INVITED SPEAKERS
Development of optical polymer waveguide devices for application in optical communication
Chiang Kin Seng City University of Hong Kong
We present a review of our research effort in the development of optical polymer waveguide devices for application in optical communication. Over the years, we have demonstrated a wide range of polymer waveguide devices, including low-birefringence waveguides, planar and vertical couplers and switches, widely tunable waveguide grating filters, and broadband add/drop multiplexers. In addition to the con-ventional fabrication processes based on photolithography and reactive-ion etching, we have been ac-tively developing other processes, in particular, the ultra-violet (UV) writing technique and the imprint-ing or embossing technique, to enhance our waveguide fabrication capacity.
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Radio-over-Fiber system based on Stimulated Brillouin Scattering Chung Ghiu Lee
Chosun University
The wireless communication network is required to accommodate broadband application, for example, video telephony. The communication networks must have broadband capability to support future broad-band services to any user seamlessly. In viewpoint of the bandwidth expansion for the wireless commu-nication system, the radio-over-fiber (RoF) system technology has been studied to support RF waves while maintaining the broadband nature of fiber optics. The concept of RoF system and the role of stimulated Brillouin scattering (SBS) are explained. The mechanism of employing broadband data by utilizing SBS is also described. To estimate the perform-ance of data transmission, the analog characteristics of the system based on SBS have been measured and verified. The experimental demonstration of Gb/s-grade downlink is reported.
Tunable multiwavelength fiber lasers using fiber Bragg gratings Chung Youngjoo
Gwangju Institute of Science and Technology
Multiwavelength lasers are attracting interest due to their applicability in communication, sensing and instrument testing. We will discuss in this paper the implementation of multiwavelength fiber lasers us-ing various gain media and multichannel filters based on fiber Bragg gratings. Comparison of the per-formance characteristics depending on the configurations will be presented.
The Role of FCoE in I/OConvergence&FCoE in Depth Claudio DeSanti
Cisco Systems
Fibre Channel over Ethernet (FCoE) is a protocol currently being defined by the INCITS T11 group that allows a seamless mapping of Fibre Channel into a lossless Ethernet network. This paper elaborates the extensions needed to Ethernet in order to support FCoE, the architectural models of FCoE, the way in which Fibre Channel frames are mapped into Ethernet frames, the addressing structures used by the pro-tocol, and the control protocols that allow FCoE to be seamlessly integrated in an existing Fibre Channel environment. Several technologies attempted in the past to achieve I/O convergence in the data center, but without broad market success. Extensions currently being defined in the IEEE 802.1 group will make Ethernet a good candidate for I/O convergence. The emerging Fibre Channel over Ethernet (FCoE) protocol plays a critical role in this convergence process. This paper elaborates how FCoE leverages the ubiquity and economics of Ethernet networks while preserving the infrastructure, strengths, and tools of the existing Fibre Channel storage management framework. .
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Chirped fiber grating-based Fabry-Perot filters and their applictions Dong Xinyong
China Jiliang University
Fabry-Perot filters (FPFs), as one type of the most important wavelength-selective optical components, are of interest for many applications in optical communication and sensing systems. In recent years, op-tical fiber based FPFs have attracted a lot of attention due to their obvious advantages over conventional FPFs, such as the small size and low insertion loss. In this talk, a novel FPF based on superimposed, chirped fiber Bragg gratings (CFBGs), with its free spectral range being tuned continuously by using a beam-bending method, will be presented. Its applications in realization of spacing-tunable fiber la-sers will also be addressed.
Fabry Perot Laser diode for pulse generation and it's other applictions Fang Xiao-Hui
The Hong Kong Polytechnic University
In this paper, Fabry-Pérot laser diode (FP-LD) based pulse generation and it’s application in optical sig-nal processing is demonstrated. Three topics are focused which including: (i) continuously wavelength-tunable optical short pulse generation in a relatively wide range of 42 nm based on FP-LD by enlarging injection locking range, The sidemode suppression ratio achieved is 35 dB over the whole wavelength tuning range; (ii) a simple method to generate high power and 139 GHz high repetition rate pulse train based on self injection-locking in a commercially available FP-LD; (iii) a novel, simple, and low cost method for all optical clock recovery at 10 GHz based on the switching of two longitudinal modes in a dc biased multi-quantum-well (MQW) FP-LD.
Development of multiwavelength fiber lasers and their applications Feng Xinhuan
The Hong Kong Polytechnic University
Multiwavelength erbium-doped fiber lasers (EDFLs) attract a lot of interest due to their potential appli-cations as optical sources in DWDM fiber communication systems, fiber sensing, and component test-ing. In this talk, we first give an introduction of some research work on stable multiwavelength EDFLs. Then we demonstrate, for the first time to our knowledge, the implementation of a microwave photonic filter using multiwavelength EDFL.
Fiber Grating Laser Sensors Guan Bai-Ou
Dalian University of Technology
Fiber grating laser sensors have attracted considerable interests because they not only possess advan-tages of passive fiber grating sensors, such as compact size, inherent self-referencing capability, and multiplexing capability, but also offer higher signal-to-noise ratio. We present some of our latest works.
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Capacity Limits of Datacommunication Links using Multimode Optical Fiber
Ian H White University of Cambridge
The growth in the internet has placed increasing demands on low cost technologies for the transmission of large bandwidths over short distances, particularly in access, server area and enterprise environments. This has led to the development of a wide range of technologies for both electrical and optical transmis-sion media. Of much interest has been the development of multimode fiber optical links, as this type of fiber remains important in buildings.
Following a review of optical datacommunication technologies, this paper will review recent studies on the potential ultimate transmission performance of multimode fiber data links. Maximum capacity levels will be reported, for OM1, OM2 and OM3 multimode fiber types. The worst case capacity length prod-ucts are shown to be 15 Gbit/s.km for a single wavelength channel at 1300 nm wavelength, and 60 Gbit/s.km for OM3 for operation at 850 nm wavelength.
The Role of FCoE in I/OConvergence&FCoE inDepth Jiang Joy
Finisar Corporation
Fibre Channel over Ethernet (FCoE) is a protocol currently being defined by the INCITS T11 group that allows a seamless mapping of Fibre Channel into a lossless Ethernet network. This paper elaborates the extensions needed to Ethernet in order to support FCoE, the architectural models of FCoE, the way in which Fibre Channel frames are mapped into Ethernet frames, the addressing structures used by the pro-tocol, and the control protocols that allow FCoE to be seamlessly integrated in an existing Fibre Channel environment. Several technologies attempted in the past to achieve I/O convergence in the data center, but without broad market success. Extensions currently being defined in the IEEE 802.1 group will make Ethernet a good candidate for I/O convergence. The emerging Fibre Channel over Ethernet (FCoE) protocol plays a critical role in this convergence process. This paper elaborates how FCoE leverages the ubiquity and economics of Ethernet networks while preserving the infrastructure, strengths, and tools of the existing Fibre Channel storage management framework.
A Roadmap for Realizing All-optical Packet Switching: A Network Architecture Perspective
Jiang Shengming South China University of Technology
All-optical packet switching (AOPS) technology is a key to the efficient utilization of the tremendous bandwidth provided by next generation optical networks through forwarding packets in the optical do-main. However, for the time-being, long packet headers, table lookup and packet header re-writing have to be processed electronically for lack of cost-effective optical processing technology. This not only increases system complexity but also limits packet forwarding speed due to o p t i c a l - e l e c t r o n i c - o p t i c a l c o n v e r s i o n a n d r e l a t e d e l e c t r o n i c p r o c e s s i n g . This talk tries to discuss a new direction to find solutions for AOPS networks from the net-work architecture perspective. The basic idea is to further simplify network architecture such that less information is processed and neither table lookup nor header re-writing is required for AOPS operations. It is expected that with the limited optical processing and buffering technologies
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Distributed High Performance Computing over Optical Virtual Private Network
Jin Yaohui Shanghai Jiao Tong University
A service-oriented architecture (SOA)-based inter-domain optical virtual private network (OVPN) ser-vice architecture is proposed for coordinated scheduling of distributed computing. Different OVPN par-tition scenarios across two GMPLS domains were experimentally demonstrated in the 3TNet testbed.
Optical Packet Switching With Multi-Optical-Codes Label Kun Qiu
University of Electronic Science and Technology of China
In the current scheme of optical packet switching with optical-code label, the label is represented by one optical code. The capacity of label is limited by the total available number of optical codes in the same set. For expanding the label number to guarantee the network operation, the code length is increased in-credibly. The long codes make it more difficult to manufacture the encoders and decoders. More impor-tantly, the efficiency is not high enough because the number of label is linearly increasing with the code length. We expand the available number of optical-code labels by combining the optical codes in serial order. The increasing number of label has an exponential relationship with the label length. The theoreti-cal analysis of the scheme is given and the experiment results are shown.
Micro/Nano-Scale Optical Network: A New Challenge to-ward Next Generation
Lee El-Hang INHA University
We present an overview of our work on the theory, design, fabrication, and integration of micro/nano-scale optical networks. This is an extension of the macro/mega-scale optical networks down to the level of micro/nano-scale optical networks. The integration of micro/nano-scale optical networks also leads to the VLSI micro/nano-photonic circuits. The micro/nano-optical networks or circuits perform the func-tions of sensing, storing, transporting, processing, switching, routing, and distributing optical signals on flat modular boards or on chips. The integrated optical components include micro/nano-scale light sources, waveguides, detectors, switches, modulators, sensors, directional couplers, multi-mode interference devices, AWGs, ring-resonators, photonic crystal devices, plasmonic devices, and quantum devices, made of polymer, silicon and other semiconductor materials. Some molecular devices are also considered. The paper discusses scientific and technological issues concerning the interconnection and integration of micro/nano-scale photonic devices, circuits, and networks even leading to ultra-small and very large scale integration as applicable for datacom, telecom, transportation, aero/space/avionic and bio/sensor/environmental systems. The issues include the compatibility issues between micro/nano-devices such as materials mismatch, size mismatch, shape mismatch, mode mismatch, optical mismatch, and mechanical /thermal mismatch in micro/nano-scale. The issues also include the comparison of the characteristics of the macro/mega-optical network and the micro/nano-optical network. Scaling rules for the miniaturiza-tion and scaling rules for the integration of the micro/nano-photonic systems will be discussed in
available today or in the near future, the fundamental networking function can be uilt all-optically to realize AOPS networks.
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Comparison with those of the electrical networks and circuits. Theories of micro/nano-optical circuits and networks will be discussed along with the theories of the electrical circuits and networks. New phys-ics, visions and challenges of the optical micro/nano-optical networks and circuits will be discussed along with the historical perspectives of the evolution of the electrical technology. Examples of pro-gresses in micro/nano-optical networks and circuits will be presented.
Novel Hybrid WDM & TDM Passive Optical Network based on Gain-clamped Wavelength Converter
Liu Deming Huazhong University of Science and Technology
A Hybrid WDM & TDM Passive Optical Network (HPON) system based on the wavelength converter is presented, in which the WDM technology is used to combine the optical signals from the OLTs of sev-eral TDM-PONs into one single-mode fibre. A gain-clamped semiconductor optical amplifier wave-length converter (GCWC) is used to convert the wavelength of the ONUs of TDM-PONs into special wavelength of the DWDM technology in the ODN of the HPON system. The experiment results show that the eye diagram of the converted optical signal of the GCWC is very clear, the optical burst packets are very well and the transparent wavelength conversion for the ONU’s optical signal of HPON system I is realized.
Microstructured optical fiber gratings and their application Liu Yan-ge
Nankai University
We present an overview of our work on the theory, design, fabrication, and integration of micro/nano-scale optical networks. This is an extension of the macro/mega-scale optical networks down to the level of micro/nano-scale optical networks. The integration of micro/nano-scale optical networks also leads to the VLSI micro/nano-photonic circuits. The micro/nano-optical networks or circuits perform the func-tions of sensing, storing, transporting, processing, switching, routing, and distributing optical signals on flat modular boards or on chips. The integrated optical components include micro/nano-scale light sources, waveguides, detectors, switches, modulators, sensors, directional couplers, multi-mode interference devices, AWGs, ring-resonators, photonic crystal devices, plasmonic devices, and quantum devices, made of polymer, silicon and other semiconductor materials. Some molecular devices are also considered. The paper discusses scientific and technological issues concerning the interconnection and integration of micro/nano-scale photonic devices, circuits, and networks even leading to ultra-small and very large scale integration as applicable for datacom, telecom, transportation, aero/space/avionic and bio/sensor/environmental sys-tems. The issues include the compatibility issues between micro/nano-devices such as materials mis-match, size mismatch, shape mismatch, mode mismatch, optical mismatch, and mechanical /thermal mismatch in micro/nano-scale.
Broadband optical couplers based on parallel long-period fiber graings Liu Yunqi
City University of Hong Kong
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Optical couplers for signal distribution, such as fused tapered fiber couplers and waveguide junction couplers, are indispensable components in today’s optical fiber communication systems. For the last few years, we have been working on a new class of optical couplers. Our approach is based on using parallel long-period fiber gratings (LPFGs). An LPFG is a grating formed in a single-mode fiber; it enables light coupling from the guided mode to selected cladding modes at specific resonance wavelengths. In most applications with LPFGs, the light energy coupled to the cladding mode is lost and the LPFG functions merely as a band-rejection filter. Our studies show that the light coupled to the cladding mode can be collected efficiently by using two parallel LPFGs [1],[2]. The outputs from the two gratings are complementary to each other, one showing band-rejection characteristics and the other showing band-pass characteristics. The structure of two par-allel LPFGs thus operates as a broadband optical add/drop multiplexer (OADM) [1],[2]. Using two par-allel CO2-laser written LPFGs, we have achieved a peak coupling efficiency of ~86% [3], which is the highest value that has been reported so far. We have also extended the idea to three parallel LPFGs and demonstrated a total power transfer efficiency of ~85% at the resonance wavelength [4]. We can config-ure three parallel LPFGs to form a 1 ´ 3 coupler, a 3 ´ 3 coupler [5], or a six-port OADM [4]. LPFG cou-plers have emerged as a new class of all-fiber broadband couplers, which have the potential to be further developed into bandpass filters and OADMs (fixed or tunable) for coarse wavelength-division-multiplexing (CWDM) applications.
Optical code processing and its application to photonic networks Naoya Wada
National Institute of Information and Communications Technology
Recent progress on optical code processing technology is explained. Ultra-high speed optical code proc-essing deices and systems are shown. As application of these technologies, OCDMA-PON and OPS net-work are demonstrated.
A 100-Gb/s system with large tolerance to dispersion and PMD Su Yikai
Shanghai Jiao Tong University
We experimentally demonstrate a 100-Gb/s system employing low-speed electronics. The OSNR per-formance and the tolerance to residual dispersion and polarization mode dispersion (PMD) are investi-gated.
Optical OFDM for High-Speed Networks Tang Jian Ming
Bangor University
The Bangor Research Group has been involved in proposing, for the first time, the signal modulation concept of Optical Orthogonal Frequency Division Multiplexing (OOFDM) in 2005. In the same year, significant advances in the proposed OOFDM technique have also been made by Bangor research group due to the introduction of a novel signal modulation technique known as Adaptively Modulated OOFDM (AMOOFDM). Over the past two years, the techniques have been received overwhelming
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Photonic bandgap fiber components and sensors Wei Jin
The Hong Kong Polytechnic University
Recent developement on photonic bandgap fiber (PBF) components and sensors will be reviewed. Em-phasis will be on our work on PBF poalrizers, long period PBF grating filters, PBF strain, temperature, refractive index, and gas sensors.
Orthoconic Antiferroelectric Liquid Crystals for Multimedia LCD’s Wiktor Piecek
Institute of Applied Physics, Military
scientific and industrial interest, and different variants of the techniques have been extensively investi-gated for various optical application scenarios including long-haul networks, Metropolitan Area Net-works (MANs) and Local Area Networks (LANs). In this talk, the fundamental operating principles of the OOFDM/AMOOFDM technique will be discussed, and the recent progress made in these techniques will also be reviewed. Particular attention will be given to the AMOOFDM technique for practical im-plementations in MMF-based LANs, SMF-based access networks and long-haul networks. In addition, some general information will also be presented regarding the EC FP7 Alpha project, in which Bangor University is involved as a major partner.
Internetworking amongst end users, e.g. in peer-to-peer networking, without having to traverse the cen-tral office is an important feature in access networks. This talk will summarize some of our previously proposed techniques in the physical as well as MAC layers to achieve such a feature.Ferroelectric smec-tic liquid crystals (FLC) were considered for high speed, high contrast displays and other high speed devices without the need of transistors and other active elements i.e., in passive matrix structures. How-ever due to such obstacles like poor mechanical durability of the structure and tremendous scientific dif-ficulties of a very basic nature their wide application is still hindered. However close related and similar polar smectic antiferroelectric liquid crystals (AFLC) offer less complicated solutions for high demand-ing applications and like FLC’s, they are capable of fast, in-plane switching. Among all known AFLC’s those exhibiting extremely high molecular tilt, reaching 45o, called Orthoconic AFLC’s (OAFLC’s) seems to be most promising for display application. OAFLC’s are unique materials which in the surface stabilized structure (SSOAFLCs) show a peculiar electrooptical behavior. SSOAFLCs become an optically uniaxial and optically negative medium, with the optical axis perpendicular to the substrates plane. Due to this property SSOAFLCs provide excellent dark state at the normal incidence, hence an extremely high contrast, regardless of the surface stabilized structure defects. Such SSOAFLC’s exhibiting tristable switching provide inherent gray scale capability, video-rate performance speed simultaneously with hemispheric viewing angle and remarkable mechanic durability. Due to this SSOAFLC are candidate for future passive multiplexed driving working displays with symmetric driving schemes and easy of gray scale generation. Key physical properties of OAFLC’s are presented as well as their significance for the display manufacturing is discussed. The SSOAFLC structures manufacturing and properties are shown. A few operating modes of OAFLC’s as well as driv-ing schemes are presented and discussed.
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Techniques in Local Area Internetworking in Access Networks Wong Elaine
The University of Melbourne
Internetworking amongst end users, e.g. in peer-to-peer networking, without having to traverse the cen-tral office is an important feature in access networks. This talk will summarize some of our previously proposed techniques in the physical as well as MAC layers to achieve such a feature.
MIMO-OFDM under Nonlinear Channel Distortions Xiang Gui
Massey University
In recent years, there has been increasing interest in combining MIMO and OFDM so that benefits of both technologies can be leveraged. This talk will investigate the practical effect of nonlinear channel distortion on space-time block-coded MIMO-OFDM signals. In particular, we consider a slow fading environment under which the performance of an iterative nonlinear distortion cancellation algorithm is studied. Furthermore, an adaptive MIMO-OFDM system is also proposed in conjunction with iterative noise cancellation to combat the nonlinear channel distortion effects on MIMO-OFDM signals.
Progress In Fiber Cavity Ring Down Spectroscopy For Ultrasensitive Detection
Yang Xiufeng Institute for Infocomm Research
Microwave photonics is an interdisciplinary area that studies the interaction between microwave and optical wave for the generation, distribution, control and processing of microwave and millimeter-wave signals. In this talk, an overview of microwave photonics techniques will be presented. Cavity ring down spectroscopy (CRDS) enables absorption measurements to be made in a quantitative and direct way, permitting remarkable gain in sensitivity over conventional approaches. Fiber cavity ring down spectroscopy (F-CRDS) is developed from CRDS and extend the absorption measurement to any kinds of cavity loss measurement induced by pressure, strain, evanescent field absorption. Using this approach, high sensitivity measurement in physical measurands such as pressure, strain and evanescent field absorption can be made. Development, implementation issues and applications of the F-CRDS are introduced.
Microwave photonics Yao Jianping
Ottawa-Carleton Institute for Electrical and Computer Engineering Microwave Photonics Research Laboratory University of Ottawa
Microwave photonics is an interdisciplinary area that studies the interaction between microwave and optical wave for the generation, distribution, control and processing of microwave and millimeter-wave signals. In this talk, an overview of microwave photonics techniques will be presented.
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Preconfigured Structures for Survivable WDM Networks Yeung Lawrence
The University of Hong Kong
Network survivability against component failure is an important issue in WDM (Wavelength Division Multiplexing) optical networks. This includes failure detection, localization and isolation (i.e. protection or restoration). In this paper, we focus on link-based failure localization and protection in WDM net-works. Different preconfigured optical structures including simple cycles, non-simple cycles and trails are discussed, and their applications in fast link failure localization and protection are studied. Based on ILP (Integer Linear Programming), we analyze the pros and cons of each structure. We found that sim-ple cycles can be regarded as a special case of non-simple cycles, and both simple and non-simple cycles are special cases of trails. Therefore, trails provide the most general and flexible structure, and the pro-tection scheme based on trails gives the best performance.
Multihop Wireless Networks with Infrastructure Suppor(MWNIs): Extending the coverage of WLANs with multihop networks
Yow Kin Choong Nanyang Technological University
We consider a wireless network with infrastructure support (MWNI) that can be constructed from an existing IEEE 802.11 based WLANs with multihop extension. Assuming that only a singe network in-terface card operating on a single channel MAC is equipped in each mobile host, we identify the chal-lenges in designing a routing algorithm to maximally utilize all the available channels. A new load met-ric is first proposed that considers possible spatial reuse, and a QoS-aware routing protocol is then pro-posed to enhance the QoS for the admitted traffic. Through simulation evaluation, a routing algorithm with such considerations is shown to be able to achieve more stable performance comparing with exist-ing routing algorithms in MWNIs, while fully utilizing available resources.
Novel polarization interference imaging spectroscope Zhang Chun Min
Xi’an Jiaotong University
A novel principle and scheme of Polarization Interferometer Imaging Spectroscope has been proposed. A wide-field-of-view polarization Interference imaging spectrometer (WPIIS) based on a Savart po-lariscope, without moving parts, and with a narrow slit has been designed and developed. The primary feature of the WPIIS is the target image as well as the interferogram and polarization information can be obtained at the same time in the spatial domain and are recorded by a two-dimensional CCD camera. The field of view of the WPIIS will be extend 3~5 times as large as a common interference imaging spectrometer, and the throughput will raise 1~2 orders of magnitude. The total optics is as small as 531.1×150×243mm3 in size, and 5.5kg in mass, the spectral resolution of the prototype system is 81.38cm-1 between 0.48μm and 0.96μm (λ=480nm, δλ=1.87nm; Λ=960nm, δλ=7.5nm).The WPIIS has advantages of ultra-compact size, wide field of view, high throughput and without any moving parts. The optics sys-tem and especially principle is described, and the experimental result of the Interference Imaging spec-trum is show.
41
Towards All-optical Logic Circuits: All-optical Minterms for Multi-input Differential Phase Shift Keying Signals
Zhang Xinliang Huazhong University of Science and Technology
A scheme for realizing basic building blocks of logic circuits, minterms, for multi-input differential phase shift keying signals (DPSK) is proposed based on delay interferometers (DI) and semiconductor optical amplifiers (SOA). The operation principle of DIs and SOAs are carefully explained. Experimen-tal demonstrations under 20Gbit/s two- and three-input DPSK signals verify the logic integrity of the scheme. Comparison between two- and three-input results is given. The final results are derived in the on-off keying format which can be used directly in networks such as access and metro networks where OOK is chosen as common data format. In addition, a convertible two-input XOR/XNOR gate is real-ized as a demonstration of composing complex logic circuits based on minterms as well as the flexibility of the scheme.
Micro-bending Optical Fiber Sensors and Their Applications
Li Xuejin Shenzhen University
Micro-bending optical fiber sensors based on bend-induced loss in optical fiber have proved themselves useful for detecting environmental changes. Many different mechanical elements have been developed to perform the sensing, each with attributes suitable for a particular application. The key structures and principles of micro-bending optical fiber sensors for special applications are introduced in this paper. It mainly includes strain sensor, liquid lever and pressure sensor, differential force and displacement sen-sor, and temperature sensor specially.
42
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Oral Paper Abstract
2-3A-1
Novel Approaches to improve the capacity of Optical Packet-switched Networks without Optical Buffers Chi Yuan
Under the current and foreseeable limitations of optical technology, performance of optical packet-switched
networks is mainly hampered at the network node by resource contention. The contention is serious
constraints on the capacity of the network. Therefore, most of the research activities are focus on the node
design. Unlike the existing research activities are focus on the node design, we proposed a new
concept--server vision for optical packet-switched networks in this paper. From the point of view of server
vision, the network resource is categorized into three types—the access server, the node server and the link
server, based on the fact that the network resource performs the different function for the traffic. After
present the server vision optical network, we presented two novel approaches--two link server solutions-- to
erase the resource contention. One solution is the packet calking, and the other solution is the dual-fiber
link. We have developed some scenarios to validate these solutions. Simulation results show that the
dual-fiber link can reduce the contention in terms of orders of magnitude in optical packetswitched networks
without optical buffers and wavelength conversions.
2-2A-3
A Tunable Lyot Birefringent Filter with Variable Channel Spacing and Wavelength Using Nonlinear Polarization Rotation in an SOA Songnian Fu, P.Shum, Minxue Wang
We experimentally demonstrate a tunable fiber-optical Lyot birefringent comb filter with independent tuning
of the channel spacing and wavelength. The filter consists of a fiber-optic programmable differential group
delay line (DGDL) and a semiconductor optical amplifier (SOA) sandwiched between two polarizers. The
channel spacing of the filter can be tuned by adjusting the programmable DGDL. Using the nonlinear
polarization rotation (NPR) effect, the output state of polarization (SOP) of the SOA can be adjusted by
varying the power level of the pump light. This results in a change in the phase shift between the transverse
electric (TE) and the transverse magnetic (TM) components of the SOA, and hence fast and continuously
wavelength tuning of the filter can also be achieved. The wavelength tuning range is up to 50% of the
channel spacing when the pump power is increased from -10 dBm to 17 dBm.
2-2A-1
Study of the Method of Steam Wetness Measuring by Laser Scattering Devices He Guizhen, Liu Haibo, Zhou Huimin, Mei Chengqiang
In this paper, the moisture measurement in LP cylinder of turbine had been reported by Laser light scattering
Mie Theory. A method of inversion for data-fitting had been used based on the phase-function curves by
calculating Mie scattering coefficient. And the influence of the real part and imaginary part of optical
refractive index had been researched. We reported a sensitive light scattering structure and a circuit design
for detecting wetness in turbine. The paper’s finding laid the theoretical and experimental basis for further
research and design of integrated intelligent sensor system. A new method of detecting online for the
vapor-liquid two-phase flow of moisture vapor content has been provided to solving the technological
problems of the wetness measuring of the enthalpy - entropy map.
43
1-1A-1
Temperature Dependent Saturation Characteristics of Wavelength Locked Febry-Perot Laser Diodes Hongyun Meng, Chang-Hee Lee
In this paper, the moisture measurement in LP cylinder of turbine had been reported by Laser light scattering
Mie Theory. A method of inversion for data-fitting had been used based on the phase-function curves by
calculating Mie scattering coefficient. And the influence of the real part and imaginary part of optical
refractive index had been researched. We reported a sensitive light scattering structure and a circuit design
for detecting wetness in turbine. The paper’s finding laid the theoretical and experimental basis for further
research and design of integrated intelligent sensor system. A new method of detecting online for the
vapor-liquid two-phase flow of moisture vapor content has been provided to solving the technological
problems of the wetness measuring of the enthalpy - entropy map.
1-1A-2
Using Sub-Sampled Bragg Grating En/decoder to Achieve 2.5Gbps 60km OCDM Transmission Experiment Tao Pu, Lin Lu, Xiangfei Chen,Yuquan Li
In this paper, we proposed sub-sampled Bragg grating(S-SBG) method to make OCDMA en/decoder.
compare the different between TPS, EPS and S-SBG in spectrum and performance. EPS-SSFBG OCDMA
en/decoders were experimentally demonstrated. 2.5Gbps OCDMA experiment is shown to achieve 60km
error free transmission using 31-chip S-SBG en/decoder and threshold adjustable receiver.
1-2A-1
Grooming of Traffic Using Improved Evolutionary Algorithm in Universal Optical Network Yishi Han
In optical networks, low speed granularity traffic stream can be arranged into high-capacity lightpaths to
improve the network throughput and reduce the network cost, knows as the traffic grooming problem. In this
paper, the traffic grooming based on Adaptive Immune Evolutionary Algorithm (AIEA) was proposed. The
problem of traffic grooming was formulated in optical networks, including main constrain, upper limit and
optimized objectives. The process of AIEA was also given by flowchart. Computer simulations were
performed with arbitrary traffic pattern and universal optical network topologies, such as ring networks and
mesh networks. Comparison with other heuristic algorithms, the results show AIEA has better resource
utilization, good convergence rate and global optimization features in optical network, especial in complex
mesh optical network.
1-2A-4
Stimulated Brillouin Scattering of Various Specialty Fibers And its Application in Slow Light Changyong Tian, Chongqing Wu, P.Shum, Li Xia, Songnian Fu, Ning Guo
We have tested and characterized the stimulated brillion scatter (SBS) optical spectrum in single-mode
optical fibre (SMF), photosensitive fibres (PSF) and photonic crystal fibers (PCF). The different refractive
indexes of fibbers cause different Brillion frequency shifts. We have also demonstrated the slow light in SMF
visa SBS. The width of 100ns pulse can be delayed from 0ns to 40ns by tuning the power of the pump.
2-2A-4
Frequency Sixupler for Millimeter-Wave Signal Generation and Transmission in Radio-over-Fiber Systems Mohmoud Mohamed, Xiupu Zhang, Bouchaib Hraimel, Ke Wu
44
Photonic millimeter-wave (mm-wave) generation using optical frequency multiplication (OFM) is considered
as a cost-effective solution for radio-over-fiber (RoF) systems. In this work, we propose a novel technique
for the generation of mm-wave using frequency sixuplexing technique. The proposed technique is
comprised of two cascaded Mach-Zehnder modulators (MZMs). The first MZM, biased at maximum
transmission, only is used for even-order harmonic generation, and then a second MZM, biased at minimum
transmission, is used for optical carrier suppression modulation and data signal modulation. As an example,
we consider an RF at 10 GHz, which carries the data signal and drives the MZMs; and an mm-wave signal
at 60 GHz, i.e. a sixupler, is obtained. It is found that our proposed technique leads to an 8-dB higher power
at 60 GHz and a 6-dB improvement in receiver sensitivity with comparison to the conventional technique, i.e.
optical carrier suppression modulation. The generated mm-wave signal is robust to chromatic dispersion.
The proposed technique is verified by experiments.
2-3A-2 A LOW REPETITION RATE PASSIVELY MODE-LOCKED FIBER LASER Xiaolong Tian, Ming Tang, Ping Shum, Yandong Gong, Peichyi Tang
We demonstrated an Yb3+ doped mode-locked fiber ring laser with over 400m cavity length. 444kHz
repetition rate wave-breaking free pulse was obtained at 1068nm with 890ps pulse width, 0.29nm bandwidth
and 5.2nJ pulse energy. This is the lowest repetition rate in passively mode locked fiber laser to our
knowledge.
1-2A-2
The Least Number of Degrees of Freedom for a Polarization Controller in Each Stage of PMD Compensator Xiaoguang Zhang, Gaoyan Duan, Lixia Xi
Automatically controlled polarization controllers (PC) are essential integral parts in an automatic
compensator for PMD. It is suggested by K. Karsson et al. and afterward widely believed that we need to
adjust only two waveplate PC (two degrees of freedom, DOF) for each stage PMD compensator to complete
PMD compensation, because it is believed that only two of degrees of freedom for each PC are needed to
complete the state of polarization (SOP) transformation from any input state into any other state covering
the entire Poincaré Sphere. This paper will take two types of commercial available PC as examples to show
theoretically and experimentally that except for the reset-free problem it is necessary to adjust at least three
instead of two waveplates in order to transform any input state into any other state covering the entire
Poincaré Sphere. Therefore we can achieve complete PMD compensation at least using 3 DOF instead 2
PC in each stage PMD compensator.
2-2A-2
Super-High Speed Fiber Optical Communication System Design and Simulation Kaikai Xu, David Cheng, Xingfa Huang
WDM is the most classic techniques in optical networks. WDM technology allows the capacity of a fiber by
the multi-wavelengths transmission increases to several dozens times, and even several hundred times by
comparing with the single-wavelength transmission capacity. In view of the broad prospects of WDM
communication systems, this essay has done an in-depth study and research on WDM. Then, design an 80
Gbps dense-WDM communication system and analyze the performance of this communication system by
BER standard. And the simulation results show that: the design is feasible.
45
2-1A-3
MULTIWAVELENGTH SEMICONDUCTOR OPTICAL AMPLIFIER BASED FIBER RING LASER Tse Chun Ho
In this report, we designed and implemented an experimental setup of multiwavelength SOA–based fiber
ring laser system. Multiwavelength lasing was achieved by using SOA as the gain medium and the
sampled-Fiber Bragg Grating (S-FBG) as the filter in the laser cavity. The laser’s intensity, power
equalization, spectrum linewidth and stability were investigated. Seven lasing peaks with extinction ratios of
at least ~30dB were obtained when FBG 6 was used in the cavity. In addition, an extinction ratio of ~50 dB
was achieved within four lasing wavelengths. When FBG 2 was applied in the cavity, dual-wavelength laser
with only 0.2nm (or ~25GHz) wavelength span was obtained. The power equalization of the two peaks was
reduced down within 0.01dBm.
1-2A-3
Design of UV-Photosensitive Highly Dispersive Photonic Crystal Fiber Berger Perrine, Kaba Myriam, Nam Quoc Ngo, Li Xia, Xia Yu, Ping Shum, Chazelas Jean, Huignard Jean-Pierre
A design of UV-photosensitive highly dispersive photonic crystal fiber is proposed in this paper, in order to
be used in slowlight experiments to generate large true time delays. A dispersion greater than
2000ps/nm/km over 3.5nm (up to 10800ps/nm/km) have been achieved near 1550nm.
1-3A-1
A radio-over-fiber system with photonics generated OFDM signals and wavelength reuse for upstream data connection Lin Chen, Jianjun Yu, Jia Lu, Ze Dong
we have experimentally demonstrated a wavelength reuse scheme for up-link connection in a
radio-over-fiber (ROF) system with photonics generated 2.5Gbit/s 16QAM OFDM signals. In this
architecture, 2.5Gbit/s 16QAM OFDM signals carried by the optical millimeter-wave (mm-wave) carriers
which are generated with four times frequency of the local oscillator (LO) signal, and both down- and
up-stream signal delivery over 20km fiber with 1dB power penalty.
1-3A-2
A Novel Full-Duplex Radio-over-Fiber System with Photonics Frequency Quadruple for optical millimeter wave generation Jing He, Lin Chen, Shuangchun Wen, Ze Dong, Jia Lu, Jianjun Yu
We propose and experimentally demonstrate a novel full-duplex radio-over-fiber system using a
Mach-Zehnder modulator along with fiber Bragg grating to generate an optical millimeter-wave signal that
has four times the frequency of the microwave drive signal, which can carry downstream data. Meanwhile
centralized lightwave reflect from the fiber Bragg gating is reused to carry upstream data. Since the
centralized lightwave with high power is reused, the optical power can be utilized effectively; therefore, the
system cost can be reduced.
2-1A-1
Investigation on Mechanical Strength and Lifetime of PANDA Polarization-maintaining Fibers Fabricated by PCVD Method Honghai Wang, Jing Li, Feng Tu, Hongbo Wei, Song Wang
In this paper, the brief fabricating process of PANDA polarization maintaining optical fibers by PCVD Method
is introduced. And the mechanical strength and employing lifetime of PCVD polarization maintaining fibers
under room temperature and 125 degree temperature are investigated and compared. All results indicate
46
that PANDA polarization maintaining fibers fabricated by PCVD Method possess excellent mechanical
properties and long-term reliability.
2-1A-2
A Novel Radio-Over-Fiber System Architecture with Bi-directional Fiber Transmission for Full-Duplex Connection Ze Dong
We have proposed and experimentally demonstrated a novel full-duplex radio over fiber (ROF) architecture
with bi-directional fiber transmission. The downstream data are carried by carrier suppression dual-mode
millimeter wave signals, while the upstream base band data will be modulated on another light wave with the
same wavelength as that of the downstream. Therefore the crosstalk caused by simulated Brillouin
scattering to the downstream and upstream signal can be aboided, and bi-directional transmission can be
realized. Our experimental results show well performance up to2.5Gbps at 20km reach range.
1-3A-3
Dynamically Survivable WDM Network Design with Shared-Cycle-Based PWCE Zhenrong zhang, An shi Xu, Yongqi He
The concept of a protected working capacity envelope (PWCE) is very attractive for designing a dynamically
survivable WDM network. In this paper, we consider a shared-cycles-based PWCE approach for designing
survivable WDM networks where the traffic demand is dynamically changing. We develop an integer linear
programming formulation to determine the protected working capacity envelope and use simulations to
evaluate the blocking performance.
1-3A-4
Optimal Design of Tunable Parametric Wavelength Converters Based on Degenerated Four-Wave Mixing in Optical Fibers Sheng Cui, Deming Liu, Yin Wang
With the emergency of the dispersion flatten HNL-DSF and PCF, the one-pump parametric wavelength
converter (PWC) based o n degenerate four wave mixing in optical fibers becomes more and more
attractive, owing to its low cost, simple structure and wide tunablity. In this paper it is proved that using a
media fiber with appropriate zero dispersion wavelength, the tuning range of the one-pump PWC can be
maximized. The maximal tuning range is proportional to the cube root of the product of the pump power and
fiber nonlinear coefficient.
2-1A-4
10Ghz Wavelength Tunable Active Mode-Locked Fiber Ring Laser Based on Semiconductor Optical Amplifier Shuangyi Yan, Jian-Guo Zhang, Wei Zhao, Hongqing Lu, Weiqiang Wang
A 10GHz Semiconductor optical amplifier (SOA) based active mode-locked fiber ring laser with a forward
injection optical pulse sequence is demonstrated with a wide wavelength tunable span in this paper. The
laser can generate pulse sequence with pulsewidth around 12ps without any external pulse compression
and high output power up to 10.75dBm at 10GHz stably. Incorporated with a tunable optical bandpass filter,
about 35nm wavelength tunable span is achieved. A detailed experimental analysis is done about the
influences of the characteristics of external pulse sequences and some key factors of the cavity on the
pulsewidth of the output pulse sequence.
47
2-3A-3 Pulse Propagation Analysis in Optical Fibers by 3D FDTD Method Juan Juan Hu, Ping Shum, Chao Lu,
In this paper, we investigate the pulse propagation in optical fibers using a three dimensional finite
difference time domain method. The analysis agrees well with analytical method.
2-3A-4
Tilted Fiber Bragg Grating-Based Single Polarization Yb3+-Doped Fiber Laser Xueping Cheng, Ping Shum, Junqiang Zhou
By using a zero-order-nulled phase mask, 45° titled fiber Bragg gratings (TFBG) were fabricated that have a
near constant polarization-dependent loss (PDL) across a wide wavelength range (1030 to 1080 nm). By
integrating this high PDL tilted FBG into the ring cavity of the ytterbium-doped fiber laser, we achieved single
polarization ytterbium-doped fiber laser with degree of polarization (DOP) of more than 99.86% at oscillation
wavelength of 1.06 μm, which is continuous tunable across 25 nm(1050 to 1075 nm).
2-3A-5
Discussion of Sizing and Capacity Planning of Server Resource for a Mass Data System Zhaoxia Lu, Jie Xi, Jiren Liu
The ways of capacity planning and performance scaling techniques of database server are discussed. This
paper also provides the method of how to scale database server for a population information system with
mass data based on rPerf data model to comply with the performance requirement. The computing process
and scaling techniques used in this paper can be referable for other capacity estimating of servers on which
the application systems are running with a large amount of data.
2-3A-8 A Markov-based Decision Process Model for Wireless Access Agent Hao Chen
The Personal Router is a mobile personal user agent whose task is to dynamically model the user, update
its knowledge of a market of wireless service providers and select providers that satisfies the user’s
expected preferences. In this paper, we show how the user modeling problem can be represented as a
Markov-based Decision Process (MDP) and suggest reinforcement learning and collaborative filtering as
two candidate solution mechanisms for the information problem in the user modeling.
1-1B-2 A New Superframe Scheme to Reduce Delay Jangkyu Yun, Byeongjik Lee, Junhyung Kim, Byunghwa Lee, Kijun Han
The key features of low-rate wireless personal area networks (LRWPAN) are the low data rate, low cost, and
low power consumption. LR-WPAN is very useful in many applications such as detection, remote control,
tracking, and monitoring. In particular, the data delay is very important in detection and remote control in
WPAN. In this paper, we propose a superframe structure for LR-WPAN to reduce the delay to transfer data
48
from the source to the destination. Our scheme can reduce overall mean data delay of between any pair of
devices by reducing waiting time of data generated during inactive period.
1-2C-4 New Vertical Handoff Algorithm Based on Hysteretic Level Shengdong Xie, Meng Wu
This paper proposes a new vertical handoff algorithm in heterogeneous wireless networks which are
composed of cellular network (CN) and wireless local network (WLAN). It is an amelioration of the traditional
handoff algorithm based-on hysteretic level, which utilizes two levels in different handoff directions and
makes handoff decision in a probability which is a function of the received signal strength indicator (RSSI).
Simulations show that our method could increase the available bandwidth and lower the number of handoffs
only at cost of a little blocking probability which is tolerable to traffics in packetswitch networks.
1-3C-2 A Cross-layer Concurrent Multi-path Forward Algorithm Laiquan Han, Jinkuan Wang, Cuirong Wang
The rapid development of communication technology, virtualization and programming router in the last few
years have given rise to a strong research interest in Concurrent Multi-Path (CMP) technology. Based on
the analysis of flow relation and forward granularity, a Cross-layer CMP Forward (CCF) algorithm is
proposed. Compared with conventional single path forward and random CMP forward, NS2 simulations
prove that CCF algorithm addresses the disorder problem of packets and achieves a better bandwidth
performance with the little CPU process overhead, and the algorithm is easily deployed to the software of
the router.
1-3C-3
The environmental quality evaluation of Qinhuangdao Port regional Based on BP Neural Network and PSO Weijun Wang, Dongxiao Niu, Qingchao Liu
A BP neural network model based on particle swarm optimization(PSO)is proposed in this paper．The basic
idea of this model is：Firstly PSO is used to optimize the BP neural network’s initialized weights，an
optimized result is got；then based on the optimized result ， the BP neural network is used for further
optimization ． We can use this model for the environmental quality evaluation of Qinhuangdao Port
regional. Finally we can get exactly appraise, this can be direct the environmental protection.
1-2C-1 Optimization of BER performance for UWB non-coherence receiver Wang Ye, Zhihuang Yang, Qinyu Zhang
The optimization on BER performance of UWB non-coherent receiver based on On-Off Keying OOK
scheme is investigated. The optimum parameters combination of length of integration interval and SNR in
the integration interval, which makes the BER minimum, is illustrated. A modified least-squares-based
algorithm is proposed in this study, which apply the Gaussian Approximation(GA) to the exact optimal
threshold. Meanwhile, the feasibility of the traditional approximation is explored. The results show the
optimum parameters proposed in the study increase the system performance greatly while comparing with
the conventional method.
49
1-2C-3 Study of ultra wideband pulse propagation in slab Meng Jing
One of the most important characteristics of an UWB pulse is frequency dispersion, due to its huge
bandwidth. This phenomenon will cause the pulse waveform distortion in the propagation, especially in the
NLOS (Non-Light of Sight) environment. This paper first introduces the successive internal reflection model
to the process of a pulse transmitted through a dielectric slab. The frequency dispersion of material is taken
into account by uniformly divided the frequency band (2-11GHz) into several subbands. Each subband is
simulated separately in the frequency band and then combined in the whole bandwidth. Then the final
waveform undergoing distortion is obtained by using the Inverse Discrete Fourier Transform (IDFT). Two
typical indoor materials: wooden door and partition are used in the analysis. The simulation of second
derivative of Gaussian pulse as UWB signal waveform is conducted. The amplitude distortion, the phase
distortion of UWB pulse signal and the comparison of the pulse transmitted through different materials are
analyzed respectively. According to the numerical results, the relative coefficients, the transmission loss and
the waveform distortion of the pulse after transmitted through two different materials are obtained. These
results have very useful implications on signal processing, equalization and channel understanding.
1-2C-2 Neural Network Based Audio Signal Denoising Yongjian Chen, Masatake Akutagawa, Qinyu Zhang, Yohsuke Kinouchi
In this paper, a novel filter is proposed by applying back propagation neural network (BPNN) ensemble where the noisy signal and the reference one are the same in a learning process.This neural network (NN) ensemble filter not only well reduces additive and ultiplicative white noise inside signals, but also preserves signals’ characteristics. It is proved that the reduction of noise using NN ensemble filter is better than the improved ε nonlinear filter and single NN filter while signal to noise ratio is smaller. The performance of the NN ensemble filter is demonstrated in the audio signals processing.
2-4A-4
Research on Passenger Information System Security Management of the Subway MiaoJian, He Deqiang, Zhang Zhenrong
The totally secure goal of building the Passenger information system of subway is proposed; the security
management principle of the subway PIS is analyzed; the safe system structure of the subway PIS is
studied. Finally, the safe solutions of the subway PIS is proposed. The method that constructs efficient
network security protection system in the PIS designing process is proposed, which thus can ensure the
security operation of the whole system and network.
2-1C-2 A MULTISTAGE INTERPOLATION DESIGN OF AN AUDIO DAC Kun Qin, Tiejun Lu, Zongmin Wang, Du Xiao, Bingmin Luo
50
A multistage interpolator consists of halfband filters and a CIC filter in audio delta-sigma DAC is presented.
The first two cascaded halfband filters realize oversampling ratio of 4,the compensation filter realize 2 and
the CIC filter realize 16.A novel method based on CSD coding is proposed to realize a polyphase
multiplier-free halfband subfilter with a high resolution. This approach reduces the complexity of the control
system and saves chip area dramatically. The final designed interpolation filter’s passband is in the region
from -0.01dB to 0.01dB and the stop attenuation is 85dB.
2-4A-1
Stream-analysis-based Intelligent TV Content Personalization System for Digital Television Terminals Jingteng Xue, Li Zhao, Xin Wei
An intelligent television content personalization system has been designed and presented in this paper. It
can detect program information by stream analysis, identify different users through face recognition, learn
user’s preference by intelligent algorithm, and offer dynamic recommendations to help every user quickly
find, locate and organize their favorite programs. TV program is automatically rated based on the ratio of
user’s total watching time to the content’s real duration; system learns user preference by calculating and
comparing the rating of each program. The function and efficiency of the system is tested by an experiment,
showing that this system can adapt user’s preference and give correct recommendations.
2-4A-3 Study on Error Concealment Technology for Mobile Spatial Digital Audio Cong Zhang, Rui-min Hu,
In the transmission or retrieval of mobile audio signals in compressed digital packet formats, the
concealment of errors maybe occur and result from missing or corrupted data. This paper first briefly
reviews error-concealment schemes developed for streaming realtime audio over mobile network
communications and in digital audio broadcasts. Then a study on the application of the MDCT domain for
audio error concealment is described based on theoretical analysis. Finally, some future research directions
are identified.
2-4A-2 Fast Implementation of Cel-based Animation Man Qi
The computational Grid is a promising platform for the deployment of large-scale scientific and engineering
application. This paper presents a Quasi-3D (almost true 3D) animation system using either 2D geometric
shapes or raster images (cels) as input primitives. Rendering high-quality computer images requires
intensive computation, and therefore a large amount of time. To speed up the rendering process, a Grid
environment has been constructed with Globus and Condor in which a large number of animation frames
can be rendered simultaneously using disparate Grid resources. The results show that the rendering
performance has been highly improved using the Grid environment.
2-4A-5 Energy Efficient Implementation of G.729 for Wireless VoIP Applications Junjun Gu, Gang Qu, Shuvra B. Bhattcharyya
Traditionally silence in VoIP applications is detected by a VAD algorithm after G.729 compression, both
have high computational and energy cost. However, such cost on silence frames will be completely wasted
because the detected silence frames will not be sent to receiver. We propose to use a silence pre-detection
(SPD) module to detect silence frames directly from the voice sample in order to reduce energy. Our
adaptive SPD algorithm has little hardware requirement and low computation cost. However, it can detect
51
59% of the silence, which results in 34% energy saving. The impact to quality of speech is almost
unnoticeable.
1-3C-4
Color Consistency in Digital Camera Color Reproduction Based on Machine Learning Li Xinwu
Digital camera is the one of the main devices in the computer and multimedia technology and its color
management model is the key to guarantee the color consistency in the succedent image production and
transfers. The paper presents a color conversion model for digital camera based on BP neural network and
the analysis of color rendering principle of digital camera. First, digital camera data is pretreated to a unitary
field to satisfy the scope requirement of the input and output data of the BP model. Second, the color shade
districts are taken to stand for the color space to decrease the calculation of the model. Third, the active item
which can adjust BP model step dynamically is used to increase convergence speed of the BP model.
Finally, the realization and experiment results show that, compared with some methods which is have
relatively high accuracy, the algorithm can improve color conversion accuracy and can satisfy the
engineering requirement in digital camera color management.
2-3A-6 The Personal Tour Planning Engine Based on Genetic Algorithm Chuanchang Liu, Junliang Chen
The personal tour planning is to select tour elements for tourists from the tour integrated-information
database according to their tour requirements, then to plan the tour time table according to the tour elements
selected. In this paper, the personal tour planning is divided into two steps: the fist one is to choose tour
elements, which is modeled by transforming into the 0-1 knapsack problem and resolved by the greedy
algorithm-based genetic algorithm; the second one is to choose a tour route according the tour elements
chosen, which is modeled by transforming into the degreeconstrained multi-objective minimum spanning
tree and resolved by the spanning tree-based genetic algorithm. Simulation results prove the method is able
to deal with the personal tour planning problem.
2-3A-7
O3-SAN based on resource joint scheduling model in service-oriented optical networks Xiuzhong Chen, Jie Zhang, Wanyi Gu
Traditional SAN(Storage Area Networks) are deployed by organization and used by themselves. These SAN
are characterized by SAN islands-pockets of noninterconnected SAN infrastructure and SMEs(Small and
medium-sized enterprises ) cannot afford the expensive private SAN. The O3-SAN are Open, Optimized
and Optical SAN architecture based on the service-oriented optical networks. A novel model of joint
scheduling of optical resource(lightpath) and storage devices are presented, and then O3-SAN are
implemented on the service plane based on web services (ws-sp). Results are showed and explained finally.
52
1-2B-4 Scalable Dynamic Power Control Model for Wireless Mesh Networks Olwal, T., van Wyk, B. J, Hamam, Y., Aron, F
In this paper, we address the problem of a scalable dynamic power control for Wireless Mesh Networks
(WMNs) based on IEEE 802.11 standards. We have assumed that multiple radios perform a distributed
power control algorithm in a time-slotted CDMA system. A distributed dynamic power control model is
designed in order to reduce complexities witnessed with mesh nodes. Performance tests via simulations
show that if the transmission power control system has sufficient bi-directional information about the
physical and medium access control layers then much power savings can be witnessed compared to the
conventional methods based on the knowledge of interferences states alone.
1-2B-2
Design of Dual-Band Frequency Selective Surfaces with Gridded-Square Elements Luo Xingfang, Lee Ching Kwang
Two examples are demonstrated to design a narrow dual-band Frequency Selective Surfaces with
gridded-square elements respectively. The equivalent circuit model combined with optimization algorithm,
differential evolution strategy is employed. The simulation results are in good agreement with the
measurement results. The good results are obtained in very short computational time and trial-and-error
process is avoided.
1-1B-1
A Novel Superframe Structure with Cognitive Radio Capability in Wireless Home Network Byunghwa Lee, Namkoo Ha, Jeongbae Yun, Jangkyu Yun, Kijun Han
Progress of wireless technology makes possible people to enjoy multi-media services at home. One of the
wireless technologies, IEEE 802.15.3 emerges High-Rate Wireless Personal Area Network (HR-WPAN).
But recently, growths in the wireless services have forced the fixed and limited radio spectrum to increasing
stress. In order to better utilize the spectrum resource, cognitive radio is proposed to take advantage of the
open spectrum policy. Cognitive radio technologies rise up to solve the spectrum allocation problem and
improving the utilization of the radio spectrum resources. Therefore, in home network for highquality
multimedia services may involve an uninterrupted highspeed wireless stream to an HDTV display from a
source like a DVD (MPEG-2) player or a real-time video designed for transmission over networks such as an
MPEG-4 stream should include cognitive radio concepts. In this paper, we propose the novel superframe
structure with cognitive radio mechanism capability in wireless home network.
1-2B-3 Optimized Call Admission Control in Wireless Networks Shengdong Xie, Meng Wu
Traditional traffic rate regulation/degradation schemes in call admission control (CAC) seldom take rate
degradation optimization into consideration, thus can not obtain the perfect grade of service (GoS) in
session layer. In this paper, we propose an enhanced rate degradation CAC (ERDCAC) scheme in
multimedia wireless networks, which is an extension and optimization of the rate regulation CAC scheme.
We introduce a variable which is a degradation threshold for wide-band traffic (WB) when new narrow-band
(NB) connection arrives, and can be adjusted at the start of every monitor period. We develop a Markov
model to analyze the ERDCAC, and design a cost function to evaluate its performance. From the result of
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Markov model analysis, along with the measurements of call arrival rates of all traffics, the threshold variable
to acquire the best GoS is obtained. Extensive numeric results illustrate the effectiveness of the ERDCAC
compared with traditional rate regulation CAC scheme which is a non-optimization rate degradation scheme.
1-3B-2
Preemptive Two-Level Priority Real-Time Scheduling Strategy for Node System in Wireless Sensor Network Lan Yao, Zhuoyue Li, Fuxiang Gao
Emerging applications such as forest fire monitoring have increasing demands on WSN to transmit data in
real-time. In order to ensure real-time data transmission, it requires that the operating system of a node
should schedule tasks in real-time. TinyOS is one of the most popular operation systems that support
multifarious applications. However, its FIFO scheduling strategy does not guarantee requirements for hard
real-time applications. A Preemptive Two-Level Priority (PTLP) Real-time Scheduling Strategy is proposed
in this paper. Two tier priorities, static and dynamic, are designed and integrated in TinyOS task queue to
guarantee the real-time task scheduling. We demonstrate this approach by a real-world case study: a WSN
hardware node embedded with our task scheduling strategy is designed and implemented. The result
demonstrates that our PTLP real-time scheduling strategy performs efficiently in terms of packet throughput
and task scheduling time.
1-3B-4 Dynamic Channel Assignment in Wireless LANs Bo Wang, William Wu, Yongqiang Liu
A traffic-aware and client-aware algorithm for dynamically assigning channels to Access Points (APs) in
Wireless Local Access Networks (WLANs) is proposed. Traffic loads and Received Signal Strength (RSS)
values are used to characterize interference. The problem of selecting channels to minimize total
interference then reduces to the Max k-Cut problem, which we efficiently solve with semidefinite
programming (SDP) relaxation. Testbed experiments demonstrate that our traffic-aware algorithm can
significantly improve the quality of a channel assignment in terms of total network throughput and channel
utilization. Under a randomly generated continuous traffic distribution, throughput gains of 40% on average
over static channel assignment are observed.
2-1B-3
The design of band-stop filter with Jerusalem-cross periodic array with four additional circular rings Yang Huaqiang, Luo Xingfang
This paper presents two designs of band-stop frequency selective surfaces (FSS) composed of
Jerusalem-cross elements with four additional circular rings. The results show that the Jerusalem-cross with
four addition circular rings is a very attractive configuration in the design of FSS. It can provide broad-band
and flattop frequency response for filter application.
2-1B-4
Predictive receive-directed antenna selection for quasi-static Rayleigh fading channel Ian McLoughlin, Shiva Prakash.P
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Multiple-input multiple output systems (MIMO) improve the performance of wireless channels through the
use of space-time coding or through spatial multiplexing techniques. As the number of antennae increases,
hardware costs naturally increase, as do power requirements. The physical antennas are themselves
inexpensive, but the main driving factor is the requirement for multiple parallel RF chains at transmitter,
receiver or both. There is consequently interest in developing so-called hybridselection schemes, where the
best L out of N antenna signals are chosen at either end. In this way, only the best set of antennae are used,
while the remaining antennae are not employed, thus reducing the number of required RF chains, but
preferably gaining some channel benefit from their locations as they are switched into and out of the link
dynamically. A critical problem faced by such closed-loop MIMO systems in mobile channels is that channel
information estimated at a receiver becomes outdated quickly, due to feedback and processing delays. For
receive-directed transmit antenna selection schemes, BER is thus sensitive to inaccurate CSI due to
feedback delays from receiver to transmitter. In this paper a transmit antenna selection strategy with
prediction is investigated for a temporally correlated flat fading Raleigh channel based on minimum error
rate criteria, which aims to save transmit power through only transmitting over the best channel – a
suboptimal approach to space-time coding, but one which can be far more power efficient. The minimum
error rate method finds particular application in an adaptive coding and modulation network where receive
signal strength indication (RSSI) is either not present or not relevant.
1-3B-1 Pulse Shape Adaptivity in OFDM/OQAM Systems Jinfeng Du, Svante Signell
Adaptation is crucial to realise high data rate transmission in multicarrier communication systems over
dispersive channels. Apart from rate/power adaptation enabled by orthogonal frequency division
multiplexing (OFDM), OFDM/offset QAM (OFDM/OQAM) systems provide possibility to adjust pulse shapes
regarding to the channel characteristics. In this paper we discuss and evaluate pulse shape adaptivity in
OFDM/OQAM systems with focus on the extended Gaussian functions (EGF) which have been shown to be
good candidates for pulse shape adaptation. By investigating the time frequency dispersion robustness and
carrier frequency offset sensitivity, both analysis and simulation results show that pulse shape adaptation
with respect to the channel state information can improve the system performance.
1-3B-3
Minimizing Point-to-Point Transmission Energy with Error Correction Coding and Transmission Power Control Junjun Gu, Aihong Yao, Gang Qu, Ahmed Bouridane
Energy efficiency has become an important concern for the design of communication systems, particularly
the wireless sensor networks where recharging battery might not be feasible. In this paper, we investigate
how error correction coding (ECC) and transmission power level can impact the packet loss rate and
transmission energy. We focus our analysis on the direct point-to-point communication, which is the basic
unit for any data communication, in three popular scenarios: only one retransmission is allowed; multiple
re-transmissions are made to guarantee a given packet loss rate; and retransmitting until the packet is
received correctly. For each case, we derive formulas to show whether and when ECC and power control
should be used. We then propose a 2-phase approach that uses ECC and power control simultaneously to
reduce energy while maintaining the required packet loss rate. Numerical simulation validates our claims
and indicates that the proposed 2-phase approach can reduce transmission energy significantly.
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1-2B-1 MUI-Free Multicarrier CDMA Xiang Gui
A new multicarrier CDMA system is proposed and its complete immunity to multiuser interference in the
presence of unknown multipath fading channel is shown analytically.
2-1B-2 Energy Proportion Analysis of Cooperative Transmission Protocols Tuanfa Qin, Hui-ping Luo, Su-yun Liao
This paper investigates the energy gain offered by implementing network coding over wireless
communication links. In this system, a source and a relay transmit each others’ messages to a common
destination using decode-and-forward strategies. The network coding algorithm is applied to a wireless
network which supports user cooperation between three nodes. Based on the relay’s different choice of
transmitting message, cooperative transmit protocols is classified into static and adaptive protocols. In this
work, the relationship between performance of two types of cooperative transmission protocols and faction
of the total energy allocated in the first time slot of cooperative scheme is investigated. The results show that
by allocating more energy in the first time slot can make better performance. In static and adaptive schemes,
both the repetition-coding-based protocols and network-coding-based protocols lead to better system
performance, at a lower outage probability.
2-1B-1
Fairness-based Scheduling Algorithm for TDD Mode IEEE 802.16 Broadband Wireless Access Systems Sheng-Tzong Cheng, Bafu Chen
IEEE 802.16 standards specify four types of services, while how to design an efficient scheduling algorithm
remains an open issue. Manufacturers can implement their own scheduling algorithms depending on their
specific requirements. There are a lot of scheduling algorithms proposed in the literature. Several
scheduling algorithms propose hierarchical structures with strict priority or one-level scheduling mechanism.
They are based conceptually on the round-robin approaches. However, they don’t consider an important
factor: fairness. In this paper we propose a fairness strategy algorithm for IEEE 802.16 broadband wireless
access networks. The proposed algorithm applies a fairness strategy to utilize the system bandwidth, to
achieve the QoS requirements of high priority service flows, and to reduce starvations of low priority service
flows. The simulation studies show that the proposed scheduling algorithm provides a flexible way to utilize
the system bandwidth
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2-2C-1
Energy-Efficient Clustering for Ad-Hoc Transmission in Wireless Sensor Networks Gurpreet Singh, Rashmi Gupta, Gaoxi Xiao
Clustering in wireless sensor networks is a widely acclaimed and proven energy-saving scheme. By letting
each sensor to communicate with its cluster-head (CH), which in turn aggregates the collected information
and communicates to the base station (BS), energy consumptions can be lowered. In this paper, we
propose a set of simple yet effective algorithms for minimizing the overall energy consumptions in clustered
wireless sensor networks where each CH can either communicate directly to BS or ad-hoc through other
CHs. Simulation results show that, by allowing adhoc transmissions between CHs, an impressive energy
saving can be achieved. Moreover, under such case the networks also tend to have more balanced energy
consumptions by different clusters, which is highly favorable in some applications.
2-2C-2
Energy-Aware and Level-Distribution Routing Protocol in Ad Hoc Networks Shi Zheng, Weiqiang Wu, Qinyu Zhang
Energy resource is one of the most important resources in ad hoc networks where terminals are always
supplied with limited energy. Recently, study on the strategy of saving energy and protecting lower energy
nodes is attracting more and more attention. In this paper, energy-aware level-distribute (EALD)dynamic
routing algorithm is introduced. Residual energy is divided into three levels, according to which, relevant
algorithm of routing discovery is adopted. Load balance strategy in the whole network and protecting of
lower energy nodes are well carry out. On the other hand, a large reduction of substitute routing discovery
time is achieved because of remaining energy awareness and warning strategy in the routing maintenance.
Compared with AODV protocol in various configurations of environment, simulation results show that this
routing protocol prolongs the life time and releases the traffic load of the overused nodes.
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2-2C-3
Study of Improved Key Distribution Mechanisms Based on Two-layer Structure for Wireless Sensor Network Kaiping Xue, Mingxiu Hu, Peilin Hong, Hancheng Lu, Chan Guo, Yuan Zu
One of the key issues for wireless sensor network is designing viable security mechanisms for the protection
of condentiality, integrity and authentication to prevent malicious attacks, but with nodes' limited capabilities.
E±cient Key Distribution mechanisms is so important for WSN's security. In this paper, we present two key
distribution schemes based on two-layer structure for wireless sensor network, which relies the BFIBE
algorithm[5] to build the Upper-Layer security links. Other keys for link encryption are distributed and agreed
with the help of Upper-Layer nodes. To our knowledge, ours is the ¯rst work to discuss implementation
issues on the key distribution mechanisms based on two-layer structure which only use BFIBE algorithm in
the UpperLayer. The presented schemes can torrent nodes' capture.As for security, computational
complexity, and e±ciency, the presented schemes have certain advantages.
2-2C-4
Partitioning and Merging of VASM protocol for IP Address Auto-Configuration in MANETs Majid taghiloo
The main task of an address auto-configuration protocol is to manage the resource address space. It must
be able to select, allocate, and assign a unique network address to an un-configured node. We present the
VASM protocol, which allows nodes in an ad hoc network to configure their own IP address automatically.
Due to the mobility of nodes, different networks can overlap, and nodes with the same address can
accidentally get in contact. This paper proposes an innovative management of such merging of networks.
The scheme uses virtual address space for addressing new nodes joining a network. The aim is to map one
point from virtual address sheet to exactly one new node. The reason for using the term “virtual” is that the
whole corresponding address space is a 2D flat sheet and each point of this sheet is virtually mapped to a
node in MANET. The protocol uses coordinate values for generating addresses. This paper offers the high
speed prediction of address space conflicts existence and it proposes a progressive method to avoid
generating a huge amount of traffic on the wireless channels. Simulation experiments were performed using
the behavioral analyzing to evaluate the performance of the protocol in terms of overhead and latency.
2-2C-6 NS-2 Modelling And Evaluation on Topology Control Vince Chook, D.T.W Liang, Y.F Hu
Topological control and optimization is one of the many techniques used to reduce power consumption and to prolong the lifetime of the network. This paper analyses the inter-relationships between the deployment size, the number of mobile nodes involved and the performance of the network. The concept of critical transmission range (CTR) is introduced to calculate the minimum required transmission power level without sacrificing network connectivity. Furthermore the geographical aware protocol: Geographical Awareness Fidelity (GAF) is applied to optimise the overall energy consumption of the network by reducing the number of redundant nodes in the defined virtual grids.A NS-2 model with IEEE802.15.4 – Zigbee radio stack has been used for the simulations. Among the various test cases, the network with GAF enabled has shown an average energy saving of 20 percent with the number of mobile nodes equals to 10. As the number of nodes increases, the amount of energy saving increased dramatically to a remarkable 35 percent. In terms of network connectivity, the package delivery ratio measured in the simulation dropped significantly when the transmission range fell below 8 meters. This
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suggested that the network failed to remain connected when the setting of the transmission range fell below the minimum required value.
2-2C-5
Energy-Based Selective Cluster-head Rotation in Wireless Sensor Networks Fengming Hu, Hee Yong Youn
In wireless sensor networks, the sensor nodes gather and send the information to the base station.
Energy-efficiency is a challenge, due to the sensor node’s limited resources.Using a localized chain
structure and one cluster heads,PEGASIS (Power-Efficient Gathering in Sensor Information System)
defines the ‘round’ and achieves a two to threefold improvement over the LEACH protocol, in measuring the
network decay times. In this paper, we propose EBSCR (Energy-Based Selective Cluster-head Rotation)
protocol, an improvement over PEGASIS in Wireless Sensor Networks. EBSCR, like PEGASIS protocol,
uses chain and one clusterhead structure, based on energy to select the cluster-head. It does not need to
change the cluster-head every round. EBSCR can reduce energy consumption caused by clusterhead
rotation. Simulation results show that the lifetime of nodes in EBSCR can be 1-1.2 times longer than those in
PEGASIS.
2-2B-4 A NSE Based Real-time Hybrid Simulation Approach for Ad hoc Network Zhao-feng Zhang
This paper proposes a hybrid simulation approach for ad hoc network based on NS-2 emulation, which can
provide the ability for real-world traffic to interact with a simulation. By adjusting hybrid network parameters
according to the real network, we analyze the effect of different parameter settings in various experiments
and compare the results with measurements in a real network. The results show that our method enhances
the authenticity of simulation with a good real-time performance.
2-1C-1
Load Balancing Model based on Stackelberg Game for Multi-homing in Heterogeneous Radio Access Networks Tang Lun
we address the problem of load balancing for multihoming in heterogeneous radio access networks, where
multiple wireless access networks compete with each other to offer bandwidth. We firstly have presented a
Stackelberg gametheoretic model for dynamic load balancing in heterogeneous radio access networks. We
have formulated this situation as an oligopoly market in which the multi-access networks adjust their prices
dynamically to gain the maximize profit. A linear incentive mechanism and a non-linear incentive mechanism
were proposed to the load balancing problem, by Stackelberg game model we can make the network
bandwidth to be rationally and effectively used. Simulation results show our model to enables radio access
network to maximize their revenue, and ensure efficient use of bandwidth to achieve load balancing.
3-1A-6 AOMPG: An Agent Based OpenMP Programming Environment for GRID Mostafa Ghazizadeh, Hosein Deldari
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This paper discusses some of the salient issues involved in implementing the illusion of a shared-memory
programming model across a group of distributed memory processors from a cluster through to an entire
GRID. This illusion can be provided by a distributed shared memory (DSM) system implemented by using
autonomous agents. Mechanisms that have the potential to increase the performance by omitting
consistency latency intra site messages and data transfers are highlighted. In this paper we describe the
overall design/architecture of a prototype system, AOMPG which integrates DSM and Agent paradigms and
may be the target of an OpenMP compiler. Our goal is to apply this to GRID Applications.
3-1A-5 Bandwidth Limiter Shahid Habib, Ahmad Yazdan Javaid, Mohammad Abdul Qadeer
In this paper, we present a new technique for Bandwidth allocation among users in a server controlled
network in a technical, industrial or institutional setup. In creating our project we shall be using fair queuing
i.e. the system which is connected to the internet and on which our software is installed will be receiving all
the packets requested from the user. Then putting all packets in a queue and transmitting
them after a suitable delay will guarantee that the users receive the allocated bandwidth. The method is to
send all network traffic to a centralized bandwidth manager that provides prioritization, rate limiting and other
related services.
3-1A-4
Parallel Algorithm of MCQoS Routing Based on Improved PSRS and Binary Search Linfeng Yang, Jinbao Jian, Taoshen Li, Zhenrong Zhang
The multifold QoS requirements of multimedia applications make QoS provisioning extremely challenging,
largely due to the NPhard Multi-Constrained QoS (MCQoS) computation problem. A Nonlinear 0-1 program
formulation of QoS routing problem with delay, loss possibility and cost constraints has been given. Other
additive and multiple parameters all can be treated following this formulation by adding corresponding
constraints. A parallel MCQoS routing algorithm based on improved Parallel Sorting by Regular Sampling
(PSRS) and binary search has been proposed to solve the formulation of this MCQoS model. Numerical
tests show that this novel parallel algorithm has the speedup near to number of processors.
3-1A-1 Robustness of Complex Communication Networks under Link Attacks Yubo Wang, Gaoxi Xiao, Tee Hiang Cheng, Shi Xiao, Xiuju Fu
Recent research results show that some most important complex communication systems, which usually
can be modeled as scalefree networks with a power-law nodal degree distribution, may be fragile under
intentional attacks that take down network hubs. We study the robustness of these networks under
deliberate attacks which remove network links. Specifically, we evaluate the extreme case where an efficient
graph-partitioning algorithm is applied, based on accurate network-topology information, to decide on the
links to be removed. Simulation results show that even such type of calculated link-removal attack cannot
easily split a complex communication network. Moreover, among the two split parts, the larger one generally
remains as a scale-free network with a very small network diameter. We also consider the case where a
specific set of nodes have to be split away from the major part of the network. Simulation results show that
applying a graph-partitioning algorithm generally does not lead to a significantly more cost-effective solution
than simply removing the given set of nodes together with the links connected to them.
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1-1C-2 Load Balancing for Efficient Routing in Wireless Sensor Networks Minho Choi, Sooyeol Yang, Namkoo Ha, Honggil Lee, Jilong Li, Kijun Han
Congestion is generated by buffer overflow and generally is considered in transport layer. However, there is
almost no considered one about existing routing protocols of sensor network because it is difficult to apply
congestion control in transport layer of WSNs (wireless sensor networks) that have limited resources such
as energy, buffer, and bandwidth of sensor nodes. Therefore, routing protocol of sensor networks must
deliberate how to control congestion. In order to overcome this problem, we propose the routing protocol
avoidable congestion to improve throughput, packet drop rate, lifetime, and so on. Consequently, each node
can evenly distribute loads. We demonstrate how to achieve congestion-free load balancing when there are
multiple routing paths towards sink.
3-1A-3 The Research of PSK Modulated Signal Using The Improved IJF Pulse Haiqiang Chen, Tuanfa Qin, Zhenrong Zhang
The Inter-symbol interference time Jitter Free (IJF) coding and Constant Phase Modulation (CPM)
technologies are very important in nonlinear communication channels. In this paper, we have discussed the
principle and the properties of the IJF base-band pulses. By using pulse-shaping and phase path-controlled
technologies, a new IJF pulse is presented which has better performance. Simulation results show that
when the improved IJF pulse is applied to the PSK technology, the IJF modulated signals can provide more
continuous phase path and get 3 dB envelope fluctuation reduction with small additional complexity.
3-1A-7
New Rate-Compatible Algebraic Codes for Loss Recovery in Data Networks Zhi-Min Yang
In this paper, we present a class of Rate Compatible Algebraic (RCA) codes for bandwidth e cient packet
delivery. The new codes are perfect rate compatible in a wide range of code rate from 12 to 1 and can be
encoded on-the-y by using Chinese Remainder Theory. The decoding of the RCA codes is simply by
Gaussian elimination. Adaptive loss recovery TPs based on RCA codes in packet switching networks are
developed and evaluated by simulation. The numeric results show that the RCA codes, operated in erasure
channel, approach very close to the capacity and the RCA codes based loss recovery schemes for packet
erasure networks are bandwidth e cient with low packet delay.
2-4A-6 Spectrum Sensing Based on Cyclostationarity Shiyu Xu, Zhijin Zhao, Junna Shang
Real time spectrum sensing with certain accuracy plays a key role in cognitive radio. Cyclostationary feature
is used for spectrum sensing in this paper. Usually, cyclostationary feature detection requires high
computation complexity, in this paper we analyze the performance of some frequencies and cycle
frequencies for detection according to the licensed users’ signal features, which reduce the complexity
significantly. The best detection point is determined through simulation analysis on different detection points,
and then we propose combination detection method using multiple detection points to obtain better
performance. Results validate the effectiveness of the proposed method.
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2-4C-5 Signal Detection in Complex Electromagnetic Environments Yalin Zhang
A general model for complex electromagnetic environments incorporating multiplicative and additive noise is
proposed. The locally optimum detector is derived for weak signal detection and shows that the influence of
multiplicative noise in its mean multiplied to the statistics. The finite sample performance is evaluated by
Monte-Carlo simulation with the comparison of other detectors and the result indicates that the LO method
provides best performance for weak signal detection in non Gaussian noise.
2-4C-6
Integrated Radio Resource Management Strategy for MIMO-OFDM System on Cross-layer Architecture Fengchen, Lixu, Tan Zhenhui
The next generation networks are expected to provide heterogeneous services with higher data rates and
diverse quality of service (QoS) requirements. For the major challenges we are confronted with nowadays,
this paper establishes cross-layer architecture among application (AP) layer, media access control (MAC)
layer and physical (PHY) layer, upon which an integrated radio resource management (RRM) strategy is
proposed to explore the mechanisms of resource management. We design net utility functions based on
Game Theory to characterize the satisfactory level of users subject to system resource constraints,
according to their types of service and corresponding QoS requirements. Thus the objective of maximizing
net utility is formulated into a QoS-classified constrained non-cooperative Game process. Existing tools of
Game Theory could be used to solve it through working out its Nash equilibrium point. Simulation results
show that this design of integrated RRM strategy on cross-layer architecture achieves much better
performances on resource use and QoS provision.
3-1A-2
Handover Strategy of Smart Mobile Terminals among Heterogeneous Wireless Networks Wei Lin, Weiqiang Wu, Qinyu Zhang
Due to the variety of wireless networks, the handover among heterogeneous wireless networks has become
a research hotspot in recent years. More attention have been paid to the radio access network and the core
network than the terminal side. In the future the mobile terminal will face a myriad of air interfaces. To roam
freely in such a complex network environment, the mobile terminal should be able to handle the known and
unknown air interfaces. In this paper, we proposed the smart architecture of the mobile terminal based on
multiband multimode radio(MMR), Also we designed a handover strategy for the smart mobile
terminal.Using the proposed strategy the mobile terminals can handover among heterogeneous wireless
networks and the users can access di®erent network at will with one equipment.
1-3C-1
Comparison of NRZ and RZ Modulations in Laser Intersatellite Communication Systems N. Liu, W. D. Zhong, Y. He, K.H. Heng, T. H. Cheng
Laser intersatellite communication (LIC) is a promising choice for intersatellite communication due to the
high data rate that can be achieved with the advantages of light weight, smaller size and lower power
consumption. In this paper, we compare the maximum transmission distance with non-return-to-zero (NRZ)
and return-to-zero (RZ) modulations for two different LIC scenarios. Simulation results show that for the
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long-range LIC system with a saturated booster optical amplifier, the RZ modulation scheme can offer a
longer transmission distance than the NRZ modulation scheme. For the short-range LIC system without an
optical amplifier, the RZ modulation scheme performs almost the same as the NRZ modulation scheme.
2-1C-4 Design and Analysis of bi-directional pumping silicon Raman laser Ying Huang, Ping Shum, John H. Lau, Ming Tang, Jing Zhang
In this paper, a novel design of bi-directional pumping scheme is proposed and analyzed for the first time in
an attempt to verify its validity as a mean for loss reduction and gain enhancement in Raman silicon laser.
FCA loss is identified as the key loss contributor in silicon Raman process which is highly dependent on
peak input pump power level, from the simulation results to account for various loss mechanisms in on-off
gain simulation. To solve the problem of high threshold and low gain obtained in Raman silicon laser,
bi-directional pumping scheme is proposed to have the effects of loss reduction by peak power limitation
and Raman gain enhancement through average power increment. This is also substantiated by simulation
of average and instantaneous pump power level along the silicon waveguide length. With bidirectional
pumping, Raman silicon laser could improve in its threshold power and gain/slope efficiency to enable it
better application credibility.
2-1C-3 Research of PWM Drive Method for High Gray Scale TFT-LCD Ran Feng, Yao Rui-peng, Tang Zhi-jie, Xu Mei-hua
This paper presents an efficient pulse width modulation (EPWM) drive method, which is used to implement
the driving controller for TFT-LCD with high gray scale. To solve the time redundancy issues in the
traditional pulse width modulation (TPWM) drive method, the proposed method divides the display panel
into several sub-partitions and scans the sub-partitions alternately, and the gray data and vanishing signals
are transmitted with separate wires in driving controllers. It’s theoretically proved that the drive efficiency can
achieve 100% for any gray scale display systems with EPWM, and the implementation also shows that,
comparing with the TPWM method, the minimum clock frequency in the TFT-LCD systems can greatly
reduced with the proposed method.
2-2B-3
Long Period Grating Glucose Sensor Based on Sol-gel Entrapment Technique Zhang Y.F., Chan C.C., Sun J, Zheng L.T., Ho H. L., Dong X. Y., Shao L. Y
Sol-gel entrapment technique is proposed for glucose oxidase immobilization in long period grating glucose
sensor. Two glucose oxidase essays were prepared. The sensitivity of 39.8mM/nm was achieved for the
fabricated glucose biosensors.
2-2B-1 Acoustically-induced Mode-coupling in Photonic Crystal Fibers Jian Ju, K.S. Hong, Wei Jin
We report the results of our recent investigation on acoustically-induced mode-coupling in few-mode
photonic crystal fibers. The potential applications of such acousto-optic devices in tunable optical filters,
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switches and interferometric sensors will be discussed.
2-2B-2 Real-time Distributed All-fiber Strain-sensing System Yiming Zhong, Qing Shi, Tongtong Zhang, Shutong Zhou, Fuyun Lv
This work presents a real-time distributed all-fiber strain-sensing system based on Fabry-Perot (F-P)
interferometric sensors using hollow-core photonic band-gap fiber (HCPBF), which is demodulated by Fast
Fourier Transform and the signals are detected through GPIB access utilizing LabVIEW software. The
difference of pulse shifts to different sensors makes possible a simple and direct method of measuring the
cavity length of HCPBF sensors, which in turn can be used to measure phase change and the
corresponding strain. Based on a various advantages of HCPBF, the system holds a superior performance
on high sensitivity and real-time measurement.
2-4C-4 Temperature Wireless Sensors Network Based on Fiber Bragg Grating Bo Liu, Haibin zhou, Junhao Tao, Yange Liu
In this paper, we demonstrated a FBG (Fiber Bragg Grating) temperature sensor only using an EDFA and a
single FBG in the wireless sensors network. By means of detecting the intensity of the light reflected from
the sensing FBG, we can obtain the surrounding temperature perturbation. Using EDFA and photoelectric
cell in stead of BBS (broad band source) and OSA (optical spectrum analyzer) respectively, which
significantly decreases the cost of the sensing system. Finally, the sensing information can be collected,
processed, and transmitted to the control center via the wireless network. This kind of FBG temperature
wireless sensor network combined both the advantages of fiber grating sensor and wireless communication,
which provides potential commercial application in some special fields, where the conditional sensors will
not be feasible.
2-4C-1
A Highly Sensitive Refractive-Index Sensor Based on the Long-Period Grating Pair with a Fiber-Taper In-between Jinfei Ding, Liyang Shao, Hong Su, Shuangchen Ruan
We report an improved structure of long-period gratings (LPGs), i.e. long-period grating pair with a
fiber-taper in-between (LPGPFTI),as a highly sensitive refractive-index sensor. Since a taper is introduced
in-between the LPG pair, the guided core mode will be transmitted to a cladding mode as the fiber tapers
down, and thus the evanescent field of the selected cladding mode in the external medium is increased. In
this way the effective index difference is enlarged, so that the sensitivity can be greatly improved. The
experimental results have shown that the sensitivity of the LPG pair to the change in the RI of the
measurand can be efficiently improved by a fiber taper, and can be flexibly tailored by the tapering degree.
Enhanced sensitivity, which is about five times higher than that of a normal LPG pair, is achieved in the
experiment. Such a highly sensitive fiber-optic RI sensor is good or use as a chemical or biological sensor.
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2-4C-2 New Concept Photosensitive Fiber Feng Tu, Deming Liu, Jie Luo
The high Germanium (Ge) doped photosensitive fiber was widely used in the Fiber Bragg Grating (FBG)
fabricate application. It’s birefringence and clad mode coupling characters greatly influence the FBG’s
transmission character. A new concept of photosensitive fiber was introduced, with the optimised
birefringence and clad mode depressed design. The FBG write by this new fiber has –25dB clad
mode-depressed ratio and its PMD value were less than 0.045ps.
2-3C-8
The Application of FBG Sensors to Monitoring System of Wuhan Yangluo Bridge’s Anchorage System Liu Sheng-chun, Jiang De-sheng
It is vital to monitor the condition of suspension bridge’s anchorage and main cable, which is the key to
whole suspension bridge. In this paper, a innovative Load Cell based on fiber Bragg gratings (FBG) was
researched and developed, and applied to measuring and monitoring a bridge’s anchorage system for a
long term. This type of suspension anchorage is the first time to utilize to practical bridge engineering
system Wuhan Yangluo Yangtze River Bridge in Wuhan China. That is the So-Called the non-cohesive and
replacive prestressing anchorage characterized by alternative according to monitoring the tension state.
2-3C-7
Optical Fiber Sensor for Localizing Heating Positions in Multiple Points Using Multichannel Gratings with Phase Sampling and Wavelength Division Multiplexing Techniques Li Xia
An optical fiber sensor system with multichannel fiber Bragg gratings (FBGs) is proposed. The gratings are
designed and fabricated by phase sampling technique within strongly chirped phase masks. The sensing
application can be realized at multiple points through wavelength division multiplexing (WDM) technique. It
means that the different point can be monitored by different gratings, which occupies different wavelength
region, according to the central pitch and chirp coefficient of phase masks. The heating position with high
resolution can be analyzed through three corresponding channel shifts in the multichannel profile. In our
experiment, the two multichannel gratings with channel spacing of 0.8 and 1.6 nm, respectively, are
fabricated and used to sensing in two points. At last, the 400 μm accuracy of localizing the heating position
is achieved.
2-3C-6 Research on Pure Bending Characteristic of Tilted fiber Bragg graing Yinping Miao, Bo Liu, Qida Zhao
In this letter, we propose a novel structure of the pure macro-bending sensor based on the tilted fiber Bragg
grating (TFBG). The TFBG located in the half circle with the different diameters is bent at a constant angle
with respect to the tilted grating planes. With the variations of the curvature, the core-mode resonance is
unchanged and the transmission power of cladding modes detected by the photodiodes varies linearly with
curvature, while the ghost mode changes by the form of two-order polynomial. So we can use the
transmission power of ghost mode or other cladding modes to detect bending curvature as shape sensor.
From a practical point of view, the sensor proposed here is simple, low cost and easy to implement.
Moreover, it is possible to make a temperature-insensitive shape senor due to the same temperature
characteristic between the core mode and the cladding modes.
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2-4C-3
Simultaneous Measurement of Strain and Temperature with Polarimetric DBR Fiber Laser Sensor Li-Yang Shao, Xinyong Dong, Hwa-Yaw Tam
We propose and demonstrate a novel scheme for discrimination of strain and temperature using a dual
polarization distributed Bragg reflector (DBR) fiber laser. By measuring the mean wavelength as well as the
polarization beat frequency of the output of the fiber laser, strain and temperature can be determined
simultaneously. Experimental results show that the sensor has an accuracy of ±9.5me and ±0.05℃.
2-3C-5
Frequency Tuning and Linewidth Study of THZ Quantum Cascade LasersJihua Xu, R. Green, A. Tredicucci, F. Beltram, David B. Fenner, Joel M. Hensley, Harvey E. Beere, David A. Ritchie
Terahertz photonics is an emerging field, receiving considerable attention for potential applications in various areas, such as communications, military and security scanning, sensing and imaging, and trace gases detection. Terahertz quantum cascade lasers (THz QCLs) with single frequency, narrow linewidth, and wide tuning range are particularly required for spectroscopic applications.We present experimental study on single frequency tunable 4.7 THz QCLs in external cavities using two different techniques: a) tuning by varying the cavity length and b) tuning by a diffraction grating. In the former, the position of a mirror is moved allowing a mode-hop-free tuning of 0.4 cm-1, comparable to the free spectral range of the Fabry-Perot resonator, and a coarse tuning of 3 cm-1 at the center frequency of 4.7 THz. In the latter, a grating in Littrow configuration is employed for achieving a broadband mode-hop-free tuning. The linewidth enhancement factor (LEF, also known as the α-factor) is a dimensionless parameter used in semiconductor lasers to describe the coupling between the gain and the refractive index. Finite values of α will cause the laser linewidth to increase above the Schawlow-Townes limit. The LEF of mid-infrared QCLs has been reported in several publications but so far an experimental study of it in terahertz devices is lacking. The LEF of a terahertz quantum cascade laser was measured using an optical self mixing technique. We found that instead of the predicted value of zero, the LEF depends on the laser conditions, and can be as high as 0.6. The value tends to increase with increasing current. Cross absorption within the laser active region is suggested as a possible cause for the non-zero LEF found.
2-3C-4
THz time-domain study of far infrared dielectric response in 5% MgO:LiNbO3 ferroelectric crystal Guo Hongchen, Tang Sing Hai
The 5 mol% MgO:LiNbO3 ferroelectric single crystal has attracted much more attention in terahertz (THz)
generation and detection by parametric process or optical rectification. In this work, the dielectric properties
of 5 mol% MgO:LiNbO3 ferroelectric single crystal in 0.2-2 THz frequency range has been investigated by
using the transmission type THz time-domain spectroscopy (THz-TDS). The complex refractive index and
dielectric function are extracted from the measured transmittance and phase shift. The power absorption
and dispersion relationship of the lowest branch of phonon-polariton are observed. The results fit well with
the classical damped oscillator model,indicating that the far-infrared dielectric response of 5 mol%
MgO:LiNbO3 is dominated by the lowest transverse optical (TO) mode with E(x,y) symmetry centered at
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4.533THz. The investigation presented in this work provides important considerations for optimizing THz
devices in 5 mol% MgO:LiNbO3 ferroelectric single crystal.
2-3C-3
Polarization Maintaining Air-core Bandgap Terahertz Fiber Guobin Ren, Yandong Gong, Ping Shum, Xia Yu, Juanjuan Hu, Guanghui Wang
We proposed a novel polarization maintaining air-core bandgap polymer fiber for terahertz (THz) wave
guiding. The periodic arrangement of square holes with round corners in cladding offers bandgap effect for
mode guiding. The guiding properties including transmission bandwidth, numerical aperture, phaseindex
birefringence, modal absorption loss and bend loss are systematically investigated. Numerical simulations
show that the bandgap effect repels the modal power from the absorbent background polymers, resulting in
a significant suppression of absorption loss of polymers by a factor of more than 25. The phase-index
birefringence of the proposed THz fiber is on the order of 10-3.
2-3C-1 An Adaptive Approach of IDS Alert Verification for Collaborative Design Xuejiao Liu, Debao Xiao, Xin Zhuang
With increasing intrusions and attacks on the Internet, there is an urgent need to develop techniques for
network security. Current standalone network security products, such as the firewall systems, the intrusion
Detection System (IDS), the anti-virus software, the vulnerability scanning software are not capable of
withstanding the onslaught of various network threats. As a result, new security paradigms, which integrate
some security devices closely to provide accurate alerts and attain enhanced protection are emerging. In
order to achieve better network security, in this paper we present an adaptive architecture of applying
vulnerability analysis for multiple detection sensors to detect network intrusions. The architecture is
designed as a layer above intrusion detection aimed at classifying the alerts overload with different severity
by correlating results from multiple sensors and integrating vulnerability analysis. Intrusion Detection
produces basic alerts for further evaluation, whereas vulnerability analysis provides important information to
help identify the alerts. At the same time, the whole process is made more efficient and effective by using
predicate-based evaluation.
2-3C-2
Virtual Address Space Mapping for IP auto-configuration in MANET with security capability Majid taghiloo
Mobile Ad Hoc Networks (MANETs) are networks with self-organizing capabilities and without a fixed infrastructure. Wireless nodes communicate among themselves using multi-hop radio relaying, without requiring the packets to pass through a central access point or a base station. In a highly mobile and infrastructure-less scenario, pre-configuration of addresses is not possible. Therefore node addresses need to be configured dynamically with minimum delay and packet loss. Existing solutions for IP address auto-configuration do not address security issues. In this paper we propose a secure address auto-configuration for Mobile Ad hoc Networks (MANET) based on Virtual Address Space Mapping. Without any proper authentication mechanism, a malicious node can affect the normal behavior of protocol. Therefore, this approach uses cryptography functions (one-way hash function and symmetric cryptography) to encounter with all
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possible address autoconfiguration attacks. The scheme uses virtual address space for addressing new nodes joining a network. The aim is to map one point from virtual address sheet to exactly one new node. The reason of using the term “virtual” is that the whole corresponding address space is a 2D flat sheet and each point of this sheet is virtually mapped to one node in MANET. The protocol uses coordinate values for generating addresses. Behavioral simulation had been used for analyzing of the protocol performance.
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Poster Paper Abstract
P1A-1
Evanescent Field Absorption Detection in Aqueous Solutions using Microstructured Optical Fibers Xia Yu, Ping Shum, Songnian Fu, Guobin Ren, Yien Chian Kwok
There is a growing interest in microstructured optical fibers (MOFs) for advanced sensors by infiltrating the air-holes with gas, liquid and polymers. The evanescent field overlap with infiltrations is enhanced compared with conventional fibers. The pure silica material is chemically and biologically inert, which well prevents the evaporation of water. Recently, liquid core waveguide cell has become widely used to minimize source light loss to the cell. However, the construction material TeflonR AF, is one of the most expensive commercial polymers. Moreover, it is highly gas permeable, causing problems of enhanced evaporation of water from the internal solution. In this paper, we demonstrate a novel and highly sensitive detection technique of Co2+ absorbance in aqueous solutions using two different structures of microstructured optical fibers (MOF). The evanescent field isnumerically investigated in a systematic manner with the variation of structure parameters and wavelength. The effects of solution concentration, effective path-length, temperature stability andbending effect on the absorption sensitivity are explored and compared experimentally. The enhanced evanescent field from the second structure can achieve absorption sensitivity up to 1.6 Mol-1. The sensitivity using longitudinal detection method is at least sixty times higher compared with that using the perpendicular measurement technique.
P1A-2
Photonic Ultra-Wideband Monocycle Pulse Generation Using a Single Electro-Optic Modulator Songnian Fu, Jianqiang Li, P.Shum
A compact and low-cost approach to photonic ultra-wideband (UWB) monocycle pulse generation is proposed and
experimentally demonstrated based on the wavelength dependence of the half-wave voltage of a Mach-Zehnder
modulator (MZM). By employing a single MZM and two laser sources at around 1310nm and 1550nm, a pair of
polarity-reversed monocycle pulses with the full width at half maximum (FWHM) of about 80ps and the fractional
bandwidth of greater than 160% can be generated. Our experiment results show a good agreement with the
theoretical prediction. The simple setup and the convenience to control the monocycle pulse polarity are highly
favorable to the future UWB applications.
P1A-3 Four-Wave Mixing-Based Phase Sensitive Amplification with Pulsed Signal Input Xiaosheng Xiao, Ping Shum
The four-wave mixing (FWM)-based phase sensitive amplification (PSA) with pulsed signal input is investigated. A
set of exact analytical solutions for the output amplitude and phase of PSA is derived, taking into account the pump
depletion and the self- and cross-phase modulation (SPM and XPM) from pumps, signal and idler. Simplified
analytical expression of output signal power is obtained, which shows that, the amplified signal pulse will be
compressed firstly due to the phase distortion of input signal, then will be broadened due to pump-depletion.
P1B-1 First Demonstration on All-Optical 40 Gbit/s Logic AND Gate for Carrier-Suppressed Return-to-Zero Signals Jian Wang
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A polarization mode dispersion measurement method, flexible input Mueller matrix method, for the system has
polarization dependent loss is proposed and experimentally verified. By using this method, the problem of tunable
laser repeatability can be avoided with high measurement accuracy.
P1B-2 Design and Analysis of Distributed Raman Temperature Sensing System Based on Single-mode Fiber Sun Zhifeng
For the first time a distributed Raman temperature sensing system based on single-mode(SM) fiber is proposed in
this paper to achieve long distance sensing. The schematic of the measure system has been described. Especially
we have discussed the design process of optical splitting module. With the analysis of the whole system we present
the reason of use EDFA in the design. We have shown that with 1550nm probe pulse laser being amplified to
approximate 300mW, 1465nm Anti-Stokes light and 1665nm Stokes light can achieve several tens of nW and
several hundreds of nW respectively.
P1B-3 Transmission characteristic of double-couplers cascade nonlinear optical loop mirror Fuxiang Qin, Qiuqin Sheng, Ning Guo, Junjie Zhang
The modal of Nonlinear Optical Loop Mirror (NOLM) is first brought forward by N.J.Doran in 1988[1]. The
transmission characteristic of conventional NOLM has been fairly adequate researched on theory and experiment
[1～6]。According to optical Kerr effect, the two beam transmission around fiber ring in the opposite direction got
different nonlinear phase shifts. Because of the phase difference between the two beams, the outputs are in
coherent in the coupler. The output can be controlled by changing the phase shift [2]. This paper presents a photonic
crystal fiberbased double-couplers cascade nonlinear optical loop mirror structure ， and its transmission
characteristics were studied. Based on Schrödinger equation that met optical soliton pulses in the fiber and the
transmission principle of couplers, the theoretical analysis is done. Numerical analysis on its transmission
characteristics is studied by using MATLAB. Research indicates that as long as the sum of power beam splitting ratio
of two couplers is 1, and with appropriate selection of fiber length, the output pulse can be optimal compressed and
the pedestal isefficiently suppressed.
P1A-4 Measurement of Polarization Mode Dispersion with Polarization Dependent Loss Using Flexible Input Mueller Matrix Method J. Q. Zhou
A polarization mode dispersion measurement method, flexible input Mueller matrix method, for the system has
polarization dependent loss is proposed and experimentally verified. By using this method, the problem of tunable
laser repeatability can be avoided with high measurement accuracy.
P1B-4 Analysis of series-coupled racetrack microring resonator arrays with DNA-CTMA Jun Zhou, Zhenyong Wang, E. Y. B. Pun
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A novel design of series-coupled racetrack microring resonator arrays with DNA-CTMA is proposed and analyzed.
By employing the coupled mode theory and transfer matrix method, the analytical expressions for their output
transmission spectrum are deduced. Based on the analysis an optimum series-coupled racetrack microring
resonator array with DNA-CTMA is designed. The effects of coupling coefficients on the transmission spectrum are
investigated in details and box-like output transmission spectrum is obtained through the optimization of the coupling
coefficients and the number of racetrack rings.
P1B-5 Analysis for the Characteristics of Non-uniform Sampled Fiber Grating X. J. Zhang, Z.Q.Ye
Based on coupled mode theory, the optic-spectral property of non-uniform sampled fiber grating are theoretically
analyzed and numerically simulated using the transfer matrix method. We believe the finding presented here offer
useful guideline to the design of the sampled fiber Bragg grating.
P1B-6 Experimental Investigation of Nonlinear Effects of Submicro-Diameter Optical Fiber Z.Q.Ye, X.J.Zhang, H.J.Liu
Nonlinear effects of submicro-diameter optic fiber were investigated by experiment. The results show that
submicro-diameter optic fiber has smaller nonlinear threshold value, more nonlinear spectral lines than the common
optical fiber, which is highly important to weak light optical fiber communication and the design of fiber optic sensors.
P1B-7 Synthesis of Fluorinated Polymers with Reversible Addition-fragmentation Chain Transfer (RAFT Polymerization) and their Properties Ti Wu
Two polymers containing dodecafluoroheptyl methacrylate (DFA) or hexafluorobutyl acrylate (HFA) were
synthesized by using reversible addition-fragmentation chain transfer (RAFT) polymerization and their
characteristics were investigated by using DSC, TG, UV-vis, GPC and other methods. The experimental results
revealed that the synthesized polymers had narrow molecular weight distributions and the ratios of weight-average
molecular weight (Mw) to number-average molecular weight (Mn) were about 1.3 for DTPA-DFA-20 and 1.22 for
DTPA-HFA-40, respectively. And their transmittance (T%) values were over 90% at wavelengths between 350nm
and 900nm and their refractive indexes were about 1.37 and 1.39, respectively. These preliminary experiment
results showed that the polymers could be possibly used as optical fiber materials.
P1A-14 Matrix-based Polarization Analysis and Application of Semiconductor Optical Amplifiers Zhengyong Li, Chongqing Wu, Ping Shum, Hui Dong
By means of polar decomposition of the Mueller matrix, we analyze polarization rotation (PR) effects in SOAs and
demonstrate the PR angle is linear to the birefringence dependent gain (BDG). Then we further investigate the
photoinduced PR (PPR) and cross-gain modulation (XGM) effects in a pump-probe scheme, and realize the
orthogonal PR by control of a highintensity pump laser. Finally we perform the polarization switching (PS) based on
PPR with data rate at 2.5 G-bit/s. The switching speed of our PS is ~300 ps, which is highly promising to be further
upgraded.
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P2A-3 PASSIVE Q-SWITCHED DYNAMICS IN ALL-FIBER LASERS WITH RING INTERFEROMETER Lin Huang
The cooperation of Rayleigh scattering (RS) and stimulated Brillouin scattering (SBS) can change Q factor in
resonant cavity，based on which an all-fiber Er-doped Q-switched fiber laser with interference loop was designed. In
the experiments, the attributes of output laser exploiting interference loops with different coupling ratios and lengths
was investigated. A train of pulse laser with pulse duration of 7.2ns, pulse period of 4.709μs, average output power
of 5.4mW at pump power of 37mW was obtained which had a good waveform and a peak power fluctuation of∼30%.
It shows that both the coupling ratio and the length of interference loop are key parameters of generating laser pulse.
Coupling ratio of ∼10% and length of ∼2m are suit for generating pulsations.
P2B-4 All-Optical PPLN-based Tunable NRZ-to-RZ and NRZ-DPSK-to-RZ-DPSK Format Conversions Jian Wang
We experimentally demonstrate 20 Gbit/s all-optical tunable format conversion from non-return-to-zero (NRZ) to
return-tozero (RZ) based on cascaded second-harmonic generation and difference-frequency generation
(cSHG/DFG) in a periodically poled lithium niobate (PPLN) waveguide. Moreover, PPLN-based 40 Gbit/s all-optical
format conversion from non-return-to-zero differential phase-shift keying (NRZ-DPSK) to return-to-zero differential
phase-shift keying (RZ-DPSK) is also theoretically investigated by using cascaded second-order nonlinearities
including cSHG/DFG and cascaded sum- and differencefrequency generation (cSFG/DFG).
P1A-5 Passively Mode-locked Fiber Ring Laser with Large Normal Net Dispersion Tian Xiaolong, Tang Ming, Shum Ping
Here we experimentally demonstrated a passively mode-locked fiber laser (PMFL) with large normal net dispersion.
Stable mode-locked pulse output was achieved at two different central wavelengths respectively, proved that small
net dispersion is not a critical requirement for mode-locking. The output pulse had much larger pulse duration
compared to other results had ever been achieved in PMFL. The pulse could be easily compressed by single mode
fiber (SMF).
P1A-6 Investigation of Nanosize Waveguide and Nanofiber Coupler WANG Guanghui, SHUM Ping, Ren Guobin, YU Xia, HU Juanjuan
Long interaction region coupler and racetrack resonator constructed by nanosize waveguide and nanosize optical
fiber are investigated. Several components are investigated separately by using theoretical methods or simulation
methods. For planar waveguide and coupler, analytical solution of parallel waveguides pair is investigated, by
solving Maxwell equation, instead of weakly guiding approximation. The input field is distributed onto the complete
set of solutions of the coupler super-modes, which propagate separately inside coupler. At the output port, the
superposition of each mode is directly related with the coupler output. The field distribution at the output of parallel
waveguides pair is calculated theoretically. After verified the method, for nanofiber, the propagation constant is got
by numerical simulation, and then the nanofiber coupler could be investigated as the same way. Based on the
analysis of coupler, the racetrack resonator could be investigated.
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P2B-20 Novel Method of Chirped Fiber Bragg Grating Optimization for 40Gbps Optical Transmission Bo Lv, Ou Xu, Shuisheng Jian
This paper presents a novel methodology with which the linear chirped fiber Bragg grating(CFBG) can be effectively
optimized in both reflection bandwidth and group delay ripples (GDR).The parameters of specified apodization
functions is designed combining with transferring matrix method (TMM) and genetic algorithm (GA) in this scheme.
The simulation shows that after 200 generations, chirped fiber Bragg grating can reveal its better performance of no
more than 44.13ps GDR in 40Gbps working bandwidth used for chromatic dispersion compensation. Moreover,
experimental results of 500km 40Gbps optical transmission verify that this kind of fabricated CFBG is qualified for
high speed dense wavelength division multiplexing (DWDM) system.
P1B-16 Tunable Mechanically Induced Long-Period Fiber Gratings Based on Periodic Pressure grooves Jiang ming-shun, Feng de-jun, Sui qing-mei
Through analyzing long period fiber grating’s (LPFG’s) theory and fabrication methods in detail, we design a tunable
LPFG based on periodic pressure grooves. In order to study the pressure and temperature characteristics of the
fabricated LPFG, some experiments are carried out combining with photo-elastic effect, photo-thermal effect and
analysis of coupling relation between core guiding mode and cladding modes of single mode fiber (SMF).Then the
spectra of the same period with different coupling strengths, the different efficient periods with suitable strengths,
and the same period with different temperature are observed. The periodic pressure grooves’ period is 600μm, with
60 grating periods and 36mm in length. The fabricated LPFG’s maximal resonant peak is 15dB and the range of
tunable resonance wavelength exceeds 12nm by adjusting the angle between fiber and grooved plate. The
advantages of the LPFG fabricated using this technology are listed as following: both resonant peak and resonant
wavelength are tunable, lower cost and better practical application value.
P1A-7 Dispersion Effects in Active Mode-locked Fiber Lasers Huy Quoc Lam, P. Shum, Le Nguyen Binh, Y. D. Gong, Songnian Fu, Ming Tang
In this paper, we present a detailed study on the dispersion effects in active mode-locked fiber lasers. By including
fiber dispersion effect in a laser model, we find that the dispersion causes the pulse broadened and chirped.
Moreover, not only the pulse position but also the lasing spectrum is shifted when the modulation frequency is
detuned in dispersion cavity active modelocked fiber lasers. The shifting of the spectrum towards faster/slower
wavelength compensates for the delay/advance of the pulse when detuning and thus increases the locking range of
the laser. This result can be applied to improve the stability of the laser against environmental perturbation.
P2A-13 Broad-Band Tunable Wavelength Converter Based on Degenerate Four-Wave Mixing in a Highly Nonlinear Photonic Crystal Fiber Jianguo Liu
We experimentally investigated wavelength conversion of the coherent and incoherent signal based on degenerate
four-wave mixing(FWM) in a highly nonlinear photonic crystal fiber(HNPCF). In our experiment, the maximum
conversion efficiencies of -11.23dB and -11.45dB, 3dB conversion bandwidths of 40.6nm and 38.06nm for coherent
and incoherent signal are achieved in a 20m-long HNPCF, respectively
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P1B-12 Design and Fabrication of Highly Nonlinear Photonic Crystal Fiber liu hairong
In this paper a highly nonlinear photonic crystal fiber is designed and fabricated. The design process and the
simulation results of the dispersion and nonlinear coefficient with changing of the structure of the photonic crystal
fiber have also been presented. Refer to the design structure of the photonics crystal fiber the fabricated fiber is
characteristic with a flatten dispersion curve at 800nm wave band and the dispersion at wavelength of 800nm is
about -40ps/nm/km. Supercontinuum emission with spectrum stretching over 900nm is obtained by injecting 30fs Ti:
sapphire laser pulses with a pulse repetition rate of 80 MHz and a central wavelength of 805 nm into 50 meters of
such a photonic crystal fiber
P2A-2
Highly Birefringent All-Solid Photonic Bandgap Fiber with an Array of Oriented Rectangular High Index Rods Qing Shi, Zhi Wang, Fuyun Lv, Guiyun Kai, Yinping Miao, Haibin Zhou, Xiaoyi Dong
In this paper, we propose a highly birefringent all-solid photonic bandgap fiber with an array of oriented rectangular
high index rods. The high phase birefringence of the order of 10-3 and high group birefringence of the order of 10−2
are easily achievable in the fiber design. Using the finite element method, we investigate the birefringence property
of such fibers considering different values of the cladding rod’s aspect ratio and the cladding microstructure’s lattice
ratio.
P1B-17 An Adaptive Watermarking Scheme Based on Nonsubsampled Contourlet Transform for Color Image Authentication Liu dongyan
In this paper, a new semi-fragile watermarking scheme based on Nonsubsampled Contourlet Transform(NSCT) for
color image authentication is proposed, in which the watermarking is embedded in the SVs(singular values)of the
blocks within NSCT subbands by an adaptive quantized method. The eye is insensitive to the blue color so the
transform is used in the blue segment of the color image. NSCT is a redundant transform that can increase the
capacity of the watermarking and improve the tampering localization capability without causing noticeable artifacts.
In order to improve the security of the scheme, a new two-dimensional transformed network generated by the
low-dimensional Tent chaotic map is used to encrypt the embedded watermarking. The results of the experiments
show that the proposed scheme is robust to JPEG compression but extremely sensitive to malicious manipulations
such as translation and rotation.
P1B-8 A Secure Identity-Based Threshold Signature Scheme from Tate Pairings Zhou Hong
Identity-based systems have the property that a user's public key can be easily calculated from his identity by a
publicly available function. The bilinear pairings, especially Tate pairings, have high performance in cryptography.
With the foundation of above two properties, we have proposed a new ID-Based threshold signature scheme from
Tate pairings. The scheme is proved secure that it can resist attacks including plaintext attack, recovery equation
attack, conspiracy attack and impersonation attack. Furthermore, performance analysis shows that the proposed
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scheme is simple, efficient so that it will be suitable for an environment of finite bandwidth and low capability
equipment.
P1B-18 An Analysis and Implementation Study on a Robust Congestion Controller for the Internet Li Yu, Yantai Shu, Maode Ma, Ming Tang
We proposed a parameter-tunable robust proportional-integraldifferential (PID) controller for active queue
management (AQM) based on modern H∞ optimal control theory in [12]. Our robust PID controller can be tuned only
by one parameter unlike traditional PID controllers, which are tuned by three or more. Additionally, this new
parameter assignment method can be extended to other controller designed for AQM scheme based on classical
control theory or optimal control theory. In this paper, we present an analysis and implementation study on it. Taken
both robustness and closed loop performance into considerations, most desirable parameters value can be identified
by the analytical formulas derived by us. Theoretical analysis shows that the proposed controller can converge to the
reference value in steady state. Simulation results confirm our expectation that our PID controller for AQM
outperforms the existing well-known congestion controllers, such as RED and PI controller, on keeping the router
queue size at the target value without queue vibration. Further, the most important feature is that the controller is
robust to the network dynamics and traffic load changes.
P1B-9 TOA Estimation for UWB through-wall Application Ma Lin, Zhang zhongzhao, Tan Xuezhi
The wall filter effect on the UWB through-wall impulse is investigated. The problem addressed is the TOA estimation
error for the UWB indoor application. Simulation and analysis point out that it is advisable to employ the proper
impulse to achieve the high time resolution rather than to employ the impulse as short as possible. The high time
resolution and distortion by wall filter effect should be trade off and well considered when the impulse is chosen for
the through-wall application. The shorter through-wall impulse it is, the greater distortion it suffers. For templates
mismatching with the received signal, the receiver estimates the wrong TOA against the peak of the correlation.
The proposed solution is to modify the template according to the application scenarios for different wall materials.
Mathematical analysis is exploited to show the validity of this method.
P1B-19 Mobile Agent Migration Mechanism and Load Testing for Distributed System Yang Xu
The thesis introduces the Mobile Agent System development platform—Aglet and its characteristics and system
architecture, analyses the platform of migration mechanism and the main Aglets class structure, discusses the
realization methods for Aglet migration mechanism and given test cases in the distributed system on the basis of this
Aglet platform, discusses mobile agent-based load information collection and update algorithm performance. Test
show that the method in the large-scale distributed system is better than the traditional method.
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P1B-10 A New Algorithm of Region Labeling Based on Improved RLE Connectivity Analysis Tao Hu
A new data structural frame of RLE associated indirectly with objects is introduced to make two group RLEs with
different object index the same object index just by changing any one RLE’s object dual index of one group, which
can solve efficiently the problem of RLE labeling conflict in classic RLE connectivity analysis algorithms, and an
efficient region labeling algorithm based on improved RLE connectivity analysis is designed to fulfill RLE labeling just
by scanning image data once. The algorithm decreases the complexity and is easy to implement with high
performance in comparison with classic algorithms.
P2A-4 Foreground Detection Based on Motion Vector from Compressed Video Zhu leiqi, Xue Ping, Zhang Qishan
A new algorithm to distinguish the foreground from compressed videos is proposed in this paper. Local motion,
which is estimated from the residual between the original motion and the global motion, is one of the strongest
influences on visual attention. Global motion is modeled by four parameters related to camera pan, tilt, zoom and
rotation. The initial parameters are obtained from the least-squares method and updated iteratively using the
Levenberg-Marquardt algorithm. Temporal and spatial filters are also introduced to revise the final local motion. In
addition, DC coefficients are employed to refine the result based on the local motion. Experiments show that the
proposed algorithm can segment foreground effectively with a largely reduced computational complexity, as DC
coefficients and motion vectors can easily be extracted from compressed videos.
P1B-20 A Local Time Fukunage-koontz Transformation for Speech Emotional Recognition Zhao Yan
Dimension reduction is widely used in the domains of speech emotional recognition. Considering the underlying time
structure of speech signals, we propose a local time Fukunage-koontz transformation (LTFKT) to contain more
discriminative information during emotional recognition. The goal of LTFKT is to maximize/ minimize the eigenvalues
of covariance in different classes simultaneously. It can be seen that FKT is a special case of LTFKT from analysis.
The results show that the method in this paper can improve recognition rate effectively.
P2A-16 A Curvature-Compensated Bandgap Reference with High PSR Yu Jian
In this paper, a curvature-compensated current mode bandgap reference with high supply rejection(PSR) is
presented, which is in a 0.5um 2P2M n-well mixed signal CMOS technology. Several resistors are added to improve
temperature coefficient(TC). Otherwise the supply noise is directly fed into the feedback loop of the bandgap circuit
by utilizing a simple voltage subtractor circuit. The simulation results have been shown to conform well with the
theoretical evaluation. This circuit achieves 7ppm/℃ of temperature coefficient with temperature ranging from - 40～
125℃ and 106dB of PSRR at DC, respectively.
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P1A-13 An Iterated Channel Estimation and Tracking Scheme for Space-Time Code Systems Zhenghang Yan, Yilong Lu, Maode Ma, Yuhang Yang
In this paper, we propose an iterated channel estimation and tracking scheme for time-varying fading multi-input
multi-output (MIMO) channels in a space-time code (STC) system. The proposed space-time recoding scheme is, in
fact, a pseudo blind channel estimation method in the MIMO systems. It is shown that the new scheme, using the
space-time recoding at the receiver for channel tracking, can provide significant error performance gains with the
same channel utilization or tremendously improve channel utilization keeping same error performance of those
without tracking. The new channel tracking scheme can be easily generalized to the system with M receiving
antennas and N transmission antennas, or any other space-time code scenarios.
P1B-11 RARE-Cumulant Algorithm for Direction of Arrival Estimation and Array Calibration Xinbo Li, Yaowu Shi, Han Zhang
In this paper, a novel effcient mutual coupling compensation algorithm for estimation of the direction of arrival (DOA)
especially tailored to fourth-order cumulant is presented. With the use of special mutual coupling transform model of
the uniform linear arrays and the aperture extension property of fourth-order cumulant, we take mutual coupling and
virtual arrays into account simultaneously, derive the rank reduce estimator (RARE) and describe a RARE-Cumulant
algorithm for both the mutual coupling matrix and DOA estimation. Calibration sources are not required. Although
fourth-order cumulant is more complex than traditional second-order method, more spatial information we can get
and the number of mutual coupling coeffcients is not expanded with the increasing virtual arrays. Simulations show
the effectiveness of the proposed technique and illustrate that the algorithm can improve the estimation resolution,
and effciently suppress Guassian color noise.
P2A-12 Performance Evaluation of Polarization Diversity and Space Diversity under 3GPP Channel Model Qing Wang, Chunping Hou, Yilong Lu, Zhenghang Yan, Ning Liu
The polarized antenna is widely used in modern cellular installations as it reduces spacing needs and tower loads on
BSs. In this paper, polarization diversity and space diversity performance under 3GPP channel model is evaluated
through simulation. Polarization diversity was found to be more significant than spatial diversity at improving diversity
gain, and hence MIMO system capacity.
P1B-13 A Congestion Control algorithm of Fuzzy Control in Routers Xu Changbiao, Li Fengfeng
Evaluating on network state and forecasting the occurrence of congestion, Active Queue Management (AQM) can
abandon selectively those groups, so as to make source know the network state in time and adjust the dispatch
speed. But mechanism now has defect in respondent speed, stability and environment sensitivity. As to these
problems mentioned by the above, Fuzzy Control can bring relative advantages into play, actualizing the
intellectualizing of control system. Based on the existed AQM algorithm---REM, this paper explores one kind of
refinement algorithm---Fuzzy REM (FUZREM). The test shows that this algorithm can stable queue length rapidly
and achieve perfect control properties in the event of network dynamic change. Comparing to other available AQM
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algorithms, this algorithm improves on the efficiency of network congestion control.
P1B-14
Hybrid ARQ Technique Employing a Signal Constellation Rearrangement Based on 256-QAM Bin Pang, Xian-hua Dai, Han Zhang, Chang-juan Chen, Jian-qiang Liao, Zhou Xiao
In this paper, we introduce a Hybrid ARQ (HARQ) technique based on 256-QAM. By employing signal constellation
rearrangement, the diversity of bit reliabilities caused by M-QAM signal constellation can be reduced and, thus the
corresponding performance of HARQ could be enhanced. We present the standard signal constellation (Gray
Mapping) of 256-QAM, in which 3 signal constellations are rearranged to derived 4 types of constellation mapping
rules of 256-QAM. Simulation results confirm that the proposed techniqueperforms a noticeable gain in HARQ
performance wit a lower complexity.
P2A-5 Clustering with Case-based Reasoning for wireless sensor network Wang yaqiong
In wireless sensor network (WSN) the key issue is how to maximize the network lifetime since it consists of sensor
nodes having limited energy. Even though there exist numerous cluster-based routing schemes proposed for WSNs,
various important factors such as sensing coverage and distribution of live nodes are not effectively accounted in
forming the clusters. In this paper we propose a new scheme which considers the nodes’ remaining energy, distance
between the nodes, and network coverage in clustering the nodes. We also employ case-based reasoning (CBR) in
forming the clusters. Compared with the existing cluster-based protocols such as LEACH and Coverage-Preserving
protocol through computer simulation, the proposed protocol substantially outperforms them in terms of network
lifetime and coverage.
P2A-15 The Linearity Compensation Circuit Design of Wide-Ranged And Accurate Temperature Measurement Using Thermocouple Fanganan
The larger and heavier of a device, the bigger the thermal inertia after heating through industrial control.This results
in the temperature generated after heating lagging behind the desired one so as to infect its accuracy. This is an
important factor that the heating accuracy of a large-sized device cannot be improved, and also a difficult problem
that puzzles designers all the time. As to some thermocouple, software has been developed to compensate and
modify it artificially.But it is difficult for this kind of software compensation to be suitable for all thermocouples since
they vary in parameters. To find a better way of compensation,the author finally found the existing relationship
among thermocouple,thermoelectric potential and temperature by studying thermocouple carefully. The real-time,
linear and optimal design is realized by using operational amplifiers to compute high-order power series functions,
and in this way the above mentioned problem has been solved and the accuracy of measurement has been
improved extensively. The design totally meets the wide-ranged and accurate temperature control through the
appliccation to the injection molding machine and the result is satisfying.
P2A-14 Combined Resource Allocation for Multi-user OFDM System Fengchen, Lixu, Tan Zhenhui
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For the problem of dynamic resource allocation in an adaptive multi-user Orthogonal Frequency Division
Multiplexing (OFDM) system, this paper adopts the framework of cross-layer to propose a novel resource allocation
strategy on combined sub-carriers, bits and power to minimize power consumption of base station under total bits
constraint. The distribution of sub-carriers concerns not only channel state information (CSI), but also user fairness,
priority and different quality of service (QoS) requirements as well through information exchange with media access
control (MAC) layer. Meanwhile, by introducing net utility function based on Game theory in single user occasion, the
process of bit loading and power allocation on each sub-carrier can be transformed into a set of parallel net utility
function solving problems. Also, the proposed re-loading algorithm helps to implement adaptive modulation and
coding (AMC) on hardware through limited granular bit loading. Simulation proves better performances on users’
fairness, priority, overall power consumption, and algorithm complexity.
P2B-1 Blind Identification of Digital Communication Signals Based on Statistics of Directional Data LU Man-jun, ZHAN Yi, SI Xi-cai
This paper presents a new clustering algorithm to solve the blind identification problem of digital communication
signal modulation types. the algorithm utilized the instantaneous frequency and instantaneous phase of sampling
circular statistical data as a training sample to extract classification feature based on the statistical theory of
directional data. And use the characteristic parameters to achieve a variety of different types of communication
signals in the modulation recognition on the two-dimensional plane. This method is not only able to make
identification classes, but also to achieve recognition subclasses. Simulation results show that the algorithm simple
and efficient, and high in accuracy, robustness better and has strong practicality and feasibility.
P2A-1 An Effective Routing Game for Ad Hoc Networks Qin danyang, Sha Xuejun, Xu Yubin
The stability and reliability of routing protocols in existence can not be adapted to mobile ad hoc networks (MANET)
well enough. In this paper, a novel ant colony routing algorithm is proposed and evaluated to reduce the overhead
and enhance the network stability for MANET. The thought of design came into being based on the way of ants
foraging and work dividing. By making a global correction on pheromone intensity, we gain a more efficient routing
selection mechanism. The results show that, as compared with AODV (Ad Hoc On-demand Vector) routing protocol,
the ant colony routing algorithm with a global correction (ACRA-GC) can not only reduce the end-to-end delay, but
also enhance the stability and raise the efficiency of communication by exerting the function of each node in MANET.
P1A-15 A Flooding Strategy for Data Delivery in Mobile Sensor Networks Ick-Soo Lee, Honggil Lee, Keuchul Cho, Youngmi Baek, Kijun Han
In Mobile Sensor Networks (MSN), MSN may have a high rate of communication failure since the routing path can
be broken when some nodes on the path move to other position. So, MSN has to provide a means for low-cost and
low-power routing to support mobility of sensor nodes. In this paper, a limited flooding scheme for routing in MSN is
proposed to allow efficient energy utilization without requiring any complicated tasks for pathmaintenance.
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P2B-14 ES-MAC: Research on Enhanced S-MAC Technology Xu Changbiao, liu lin
As a classic protocol based on the MAC protocol in wireless sensor networks, the S-MAC protocol has been
arousing the people's widespread interests. According to the S-MAC data frame structure and signaling
characteristics, this paper puts forward a blast-off power control mechanism based on S- MAC; modifies the
competitive mechanism of the S- MAC protocol, and provides the protection to the nodes with less energy. This text
is called the ES- MAC to the S- MAC protocol that used these two kinds of mechanisms, simulation test shows that
ES- MAC can effectively reduce energy consumption, and improves energy efficiency; finally, it introduces the
access priority in S-MAC protocol, increases support which access to different priority nodes. Through these
processes, the S- MAC protocol function is improved effectively.
P2B-2 Performance Investigation of CDMA/RPMA with Power Control in TDD Multimedia Cellular Networks Xue Jun Li, Peter Han Joo Chong
Packet reservation multiple access (PRMA) is a famous packet switching based medium access control (MAC) for
its high multiplexing gain, which is further enhanced by jointly using code-division multiple access (CDMA). In most
studies on CDMA/PRMA for uplink time-division muplexing (TDD) cellular networks, perfect power control is
assumed and each time slot is divided into fixed number of code slots. It is always assumed that this capacity of a
time slot can be fully utilized. However, in practice the mobile stations (MSs) have limited transmit power levels,
which will limit the system capacity. In this Paper, we investigate the impact of limited transmit power levels on the
performance of CDMA/PRMA and propose a practical power control algorithm. Multimedia traffic is considered,
which consists of conventional voice traffic and worldwide web (WWW) browsing traffic. Simulation results reveal
that the performance of CDMA/PRMA in cellular networks degrades as the cell radius increases and for small cell
radius (e.g. 750m), it provides good system capacity even when multimedia traffic is present.
P1A-8 Average Power Control Algorithm with Dynamic Channel Assignment for TDD-CDMA Systems Zheng Zhihua, Xu He, Wu Jianhua
In TDDCDMA system, the different asymmetrical requirements between uplink (UL) and downlink (DL) in different
base station (BS) and different time will generate serious intercell interference. From the interference points of view,
dynamic channel allocation (DCA) is usually adopted in TDDCDMA systems to improve the system performance. In
this paper, a novel DCA with average power control algorithm is investigated. The power control algorithms are
addressed on the uplink and downlink power procession, as well as scheme of resource reserving and the BSBS
interference resolving mechanisms. Simulation results show the above DCA scheme has better performance
compared to those of the traditional DCA schemes for asymmetrical traffic in TDDCDMA systems.
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P2A-17 Application Research of an LFB Management and Development Model in ForCES Router Ke Chen, Ligang Dong
The router based on ForCES (Forwarding and Control Element Separation) meets the open, flexible and
programmable demands of the next generation networks. It is one important trend of the next generation routers.
Our research team is key participants in the ForCES work and authors of the IETF ForCES protocol. An LFB
management and development model based on ForCES router software architecture was illustrated. The ForCES
router software structure was first discussed. Based on that, the model was presented. Based on that, the
architecture of this model was described. The key technologies on how to manage resource library were described,
including the method of LFB resource library management and the mechanism of ForCES LFB resource internal
storage. We design a parsing tool for LFB (logical functional block) in ForCES router using C programming, then
testify the feasibility and the validity of this parsing tool. Finally, the implementation of the model was presented,
which also testifies the feasibility of the model.
P2A-18 Research on Grid Resource Discovery Mechanism Based on Resource Clustering Chen Jing, Liu mingxin
GRDS (Grid Resource Discovery Service) is one of the basic services in grid system, it provides a main way to query
and locate the interested information, and the QoS (Quality of Service) of GRDS decides whether users may use
information efficiently. In order to improve resource discovery efficiency and distinguish users’ difference in
dynamic and heterogeneous grid environment, a new GRDS based on resource clustering (GRDS-RC) is presented
in this paper. Firstly, GRDS-RC is divided into some peer-to-peer virtual community (P2PVC), and every P2PVC may
execute the discovery function parallel. Secondly, resource clustering is defined by introducing similarity measure
method, and every P2PVC is constructed according to the results of resource clustering. Thirdly, to reduce the
overhead of query, query router algorithm is proposed. The simulation results show that GRIS-CR can improve the
performance of grid and satisfy users’ demand.
P1A-12 Effect of Path Diversity on the loss performance of UDP Packets under varying network conditions Richard Haywood, Xiao-Hong Peng
In this paper we investigate the properties of packet losses when packets are transfered using an overlay network.
Three packet loss models are established for different packet loss scenarios: random, burst and congestion. Based
on these models, it has been shown through simulation that in random and burst packet losses environments the
packet loss rate increases as the number of diverse paths increases, whilst the opposite is true in the congestion
case. A combined model is presented and then developed to address the situation where the last link of the system
experiences different loss patterns to the rest of the network, such as a wireless access link.
P2B-15 A Simple Iterative Algorithm to Achieve Utility Proportional Fairness Jian Zhao, Jintao Meng
This paper is concerned with the distributed algorithm of utility proportionally fair bandwidth allocation. We propose a
converging faster algorithm to achieve utility proportional fairness. The simulation results verity the performance.
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P2B-5 Analysis and Evaluation of Fieldbus Communication and Protocol Static Characteristic Gao hongwei, Tong weiming
The MAC mechanism, communication data type, and communication reference model which are very important to
fieldbus communication are summarized and analyzed. A set of fieldbus static performance indices described by
layered concept are proposed, through diagram and simulation method, the evaluation results of the static
performance indices for several mainstream fieldbuses are presented, furthermore, the scope of application of some
fieldbuses in industrial control field is discussed. Through the way of layered description and diagram comparison,
lots of static performance indices can be decomposed and classified effectively, and the favorable mapping
relationship between application requirement and static performance indices is achieved.
P2A-19 A Study on Gigabit Laser Driver Circuit with RC Shunt Circuit for LD Current Waveform Correction Takahiro Emoto, Shinsuke Konaka, Masatake Akutagawa, Yohsuke KInouchi
Bipolar laser driver IC circuits in 2.5 gigabits/s optical transmitters for the access network systems have been studied
to reduce the overshoots in the laser diode current waveforms by optimizing a RC shunt circuit connected to the
laser diode in parallel by using a SPICE circuit simulator. The laser diode current is overshot by a parasitic
inductance of the bonding wire between the bipolar IC chip and the DFB laser diode chip, when the current is
modulated at over gigabits/s. In this paper, the optimum conditions are described on the R and C values of the shunt
circuit. The idea controlling the C value of the RC shunt circuit by an external voltage supply is proposed to
compensate the C value deviation from the optimum value to minimize the overshoot. And it is also described that
the variable capacitor using a PN diode made of a base-collector connected bipolar transistor has effectively
reduced the overshoots caused by the wire inductance increase.
P1A-11 Optical Buffer System with Service Differentiation Capability in Optical Packet Switching Network – Implementation, Modeling and Analysis Xuguang Shao, Ping Shum, Liren Zhang
We propose an optical buffer system that can be realized by implementing the state-of-art optical buffer technology
in the near future. This optical buffer system can be used at the output port of an optical router in an optical switching
network (OPS), which resembles its electronic equivalent in terms of operational functionality. Analytical modeling is
done to investigate the switch with this buffer structure. Results obtained demonstrate the capability of providing
service differentiation by using our proposed optical buffer system.
P2B-6 A Hierarchical Networking Architecture Based On New Switching Address Jinxin Zhang, Mangui Liang
A clear target for computer communication technology is to support a high performance global network. The
implementation bottleneck of high performance network is the operation of nodes not the bandwidth. There are some
disadvantages at the process of forwarding packet both in IP and ATM networking architecture. This paper describes
a hierarchical networking architecture based on new switching address. It makes source routing the basis for
interconnection, rather than an option as in IP. This architecture requires node neither table lookup nor header
re-writing, and only operation is to strip off part of switching address. Its benefits include simple switching with low
packet processing and delay, and scalability to a global network with no address starvation problem.
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P2A-6 High-performance Multi-level Single-phase AC/DC PFC GAO Chao
This paper studies and analyzes the working features of main circuit of tri-level boost PFC converter and the
advantages of tri-level switch converter in aspects of bearing high-voltage of power components, overall system loss
and magnetic component selection based upon the single-level boost PFC switch converter. Besides, relying on the
application of microprocessor in power converter technology and DSP (digital signal processing) chip's strong
calculating capacity, the paper presents the adoption of modified scheme of tri-level boost PFC converter under the
control of predictive control algorithm. Moreover, it has specified such operating principle and control method at the
end of the paper, the author finally provides results of circuit test and analysis and verifies advantages of predictive
control technology-based multi-level boost PFC converter.
P2A-20 The application of Multicarrier Spread Spectrum in PLC WANG Cui-ru, YU Xiang-bing
To resolve the problem of the frequency selective fading and Intersymbol Interference (ISI) caused by data
transmission in channel, this study researches on multicarrier spread spectrum technique. According to the special
structure of Multicarrier Direct Sequence Code Division Multiple Access (MC-DS-CDMA,) system, this study
analyses the relation of parameters configure and resumable path numbers, and the performance of system in
different parameters configure and multi-user. By the simulating and comparing of the same bandwidth and measure
arithmetic at last, it can obtain better performance than the Direct Sequence CDMA (DS-CDMA, Direct Sequence
Code Division Multiple Access) and greatly promote the capacity of anti-MAI(Multiple Access Interference) and
anti-ISI in the process of transmission.
P2A-8 Field Emission From Tungsten Carbide on W Tips Sun Jianping
Field emission patterns of tungsten carbide film formed on a tungsten tip surface were observed after the tungsten
tip was annealed at appropriate experimental conditions. Current voltage characteristic of the tungsten carbide film
was measured in situ, and its work function was self-consistently calculated to be 3.73 eV according to the
Fowler-Nordheim theory. Compared with clean tungsten tips, the work function of the tungsten tip coated with
tungsten carbide film is lowered and the emission current stability is improved, which indicates the usefulness of
tungsten carbide in the development of field emitters.
P2A-7 Field emission from K doped multi-walled carbon nanotubes Sun Jianping
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In this paper, we report our experimental studies on the effects of potassium (K) doping on field emission properties
of multi-walled carbon nanotubes films. Doping treatment was carried out with K in gas phase by vapor-solid
reactions in a glass bulb. Field emission I-V curves were measured in situ. Compared with pristine films, the turn-on
voltage for field emission from the processed sample decreased from 0.89 kV to 0.64 kV and field emission current
increased by an order of magnitude. Resistance measurement and XPS analysis showed that n-doping mechanism
played an important role in the field emission enhancement.
P2B-12 Green Organic Light-Emitting Diodes with Improved Stability and Efficiency Utilizing 9,10-di (2-naphthyl) anthracene as the Host Material Hao Tang, Xiuru Wang, Runguang Sun
We propose an emitting co-doped system for obtaining high efficient and stable green organic light-emitting diodes
(OLEDs) based on the host material 9,10-di (2-naphthyl) anthracene (ADN). In these diodes,
2,3,6,7-tetrahydro-1,1,7,7,-tetramethyl- 1H,5H,11H-10-(2-benzothiazolyl) quinolizino-[9,9a,1gh] coumarin (C545T)
and N,N’-dimethyl-quinacridone (DMQA) are co-doped into the ADN emitting layer. In the co-doped emitting layer,
ADN act as the exciting energy donor, C545T as the sensitizer and DMQA as green fluorescent dye. The green
emission comes from exciton emission in DMQA molecules via a two-step excitation energy transfer from ADN to
C545T and then from C545T to DMQA. The co-doped cell 0.6:1.2(wt%C545T: wt%DMQA) has showed the best
performance. When the current density was 20mA/cm2, the brightness of the device exceeded 1400 cd/m2 and
maximum luminance reached to 15000cd/m2 at 12 V with CIEx,y=0.30,0.62. The maximum current efficiency of the
device reached 10.8 cd/A. Compared with devices where the emitting layer is made of Alq and DMQA, the
emission efficiency and stability of the co-doped ADN-based devices are greatly improved. We attribute this
significant improvement to effective utilization of the host energy and depression of concentration quenching.
P2A-9 Research of Factors for the Response of LCDs Zhang Fanghui, Yang Dan, Wang Xiufeng
In this paper, we report our experimental studies on the effects of potassium (K) doping on field emission properties
of multi-walled carbon nanotubes films. Doping treatment was carried out with K in gas phase by vapor-solid
reactions in a glass bulb. Field emission I-V curves were measured in situ. Compared with pristine films, the turn-on
voltage for field emission from the processed sample decreased from 0.89 kV to 0.64 kV and field emission current
increased by an order of magnitude. Resistance measurement and XPS analysis showed that n-doping mechanism
played an important role in the field emission enhancement.
P2A-10 Influence of Hole Transport Layer NPB on Performance of OLED Qiang Mu
In the course of OLED preparation, we can obtain the even and compact organic film by controlling the speed of evaporation. The hole transport layer NPB is drawn into OLED, which can improve the contact of anode with organic film. At the same time, it can improve the level of current carrier injection and balance. Thereby the complex rate can be improved and the characteristic of luminescence be raised.
P2B-16 Luminescence Mechanism of Polymer Light-Emitting Devices with MEH-PPV:PVK Emitting Layer Zhang Fanghui, Yang Dan
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Four kinds of single layer PLED devices are prepared by using MEH-PPV, PVK, MEH-PPV:PVK and
MEH-PPV:PVK:OXD-7 as material of emitting layer respectively in this paper. And the luminescence spectrums of
the four devices are analysised based on the measured spectrograms. It is found that the electroluminescence
spectrum ranges of MEH-PPV and PVK are all wide. The spectrum of MEH-PPV is mainly concentrated on the fields
of red and yellow; the spectrum range of PVK covers the whole light spectrum range, and the spectrum intensity is
higher in the short wavelength region compared with that of the long wavelength region; the spectrum range of
MEH-PPV:PVK also covers the whole light spectrum, but the brightness for the range of 500～540nm wavelengths
increases as the light wavelength increases and two kinds of models are proposed here, which can explain the
unusual zone perfectly; Ray intensity of short wavelength of PLEDs can be increased by adding OXD-7 because of
its contribution on the transportation of electron, and by this way the energy of exciton can be improved greatly, and
so ray’s brightness of short wavelength will be increased, with the result of much purer white light emitted by this
type of PLED device.
P2B-17 Fractal Scan IP Core for the FPD Grey Scale Controller XU Meihua, RAN Feng, CHEN Zhangjin
This paper presents the design and logic implementation of the fractal scan IP core for the FPD grey scale controller
based on the mathematical model of the optimal scan architecture. Through the exploration of the sub-space code
sequences and bit code sequences for different gray levels, we deduce the general formulae for the sequences and
propose the corresponding logic implementations. Moreover, the parameterized IP core for various gray levels,
embedded in flat panel display scan controller, can efficiently increase the scan utilization and imaging quality. This
research provides a new engineering way to solve a pressing problem of high resolution flat panel display
technology.
Special Session 1 Photonic Crystal Fiber Sensing
P2B-3 Single Polarization Guidance in Liquid-Crystal Photonic Bandgap Fibers Sun Jian, Chan Chi Chiu, Zhang Yi Fan
Bandgap formation in nematic liquid crystal photonic bandgap fiber made of high-index nonsilica glass has been
investigated. Scalar wave approximation indicates the possibility of constructing the full bandgap structure through
two isotropic simulations for the two polarization components. Furthermore, analogous to an isotropic photonic
bandgap fiber, refractive index scaling laws are also valid. The anisotropic property of nematic liquid crystal opens
up several practically interesting guiding regimes, which enable the construction of novel polarization controllers or
switching devices.
P1A-9 High Resolusion Long-Period Grating Temperature Sensor L. H. Chan, C. C. Chan, J. Sun
A simple etched and packaged LPG temperature sensor for biomedical application has been developed and
resolution of about 0.005°C is achieved, in comparison with conventional thermometer, which only exhibits 0.01°C.
The temperature coefficient of the specially packaged LPG sensor is measured to be 3.776nm/°C, which is 15 times
higher than that of the bare LPG fiber inscribed in the same PS1250/1500 photosensitive optical fiber.
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Special Session 2 Fiber Grating Technology and Applications
P2B-11 The Research on a Novel Addressing Technique for Fiber Bragg Grating Sensor Array Li Ruo-ming, Yu You-long
The principle of a novel interrogation technology for fiber Bragg grating sensor system was provided, which
combined the wavelength selectable technique for fiber ring laser, based on the F-P filter with the time-domain
addressing technique for fiber Bragg grating array, based on a 1×4 analog electrical switch. Demodulated with an
unbalanced Michelson scanning interferometer, working with a wavelength of 1555 nm, the experimental system
was demonstrated with a sensing sensitivity of 1.630°/με, and it agreed with the theoretical value of 1.674 °/με,
basically.
P2B-18 Enhanced Sensitivity Refractive Index Sensor Using Tilted Fiber Bragg Grating with Thinned Cladding Miao Yinping
Short-period fiber Bragg gratings with gratings planes tilted at an angle 8° corresponding to the fiber axis show core
mode and a large number of cladding-mode resonances in transmission. The differences between the
cladding-mode resonance and the core-mode resonance are used to detect the variation of the surrounding
refractive index; this refractive index sensor is immune to temperature effects by experimental demonstrations. After
the cladding of the tilted fiber Bragg grating was etched by the hydrofluoric, TFBGs with different diameters and
different-order cladding modes were investigated; the sensitivity of a TFBG to the external index can be significantly
improved by reducing the cladding radius. Enhanced sensitivity and accuracy are achieved when the surrounding
refractive index changes between 1.333 and 1.4532.
P1A-10 Hybrid Fiber Grating-Based Optical Comb Filters Xinyong Dong, Li-Yang Shao, Hwa-Yaw Tam, P. Shum
In-fiber Mach-Zehnder interferometer filters, which were based on a pair of long-period fiber gratings (LPFGs), have
been operated in the reflection mode by interacting with an optical fiber mirror reflector or a chirped-fiber Bragg
grating (CFBG). As a result, the extinction ratio has been doubly enhanced. Furthermore, by tuning the chirp rate,
i.e. reflection bandwidth of the CFBG, the channel number of the formed comb filter can be easily changed. A 3 to
9-channel comb filter with a channel spacing of 2.45 nm has been demonstrated experimentally.
P2B-19 Synthesis of Fiber Bragg Grating Parameters from Reflectivity Guiling Huang, Luming Zhao, Yinping Miao, Qinchang Tu, Songfen Liu, Qida Zhao
A simple and accurate new method for synthesis of fiber gratings with advanced characteristics is proposed. By
combining a new direct stochastic algorithm for global search called probabilistic global search Lausanne (PGSL)
and transfer matrix method, we obtain a promising method synthesizing the physical parameters of a fiber Bragg
grating (FBG) structure from its reflectivity. The method can be applied over uniform and nonuniform FBGs, and
would be useful for other inverse problems. To demonstrate theeffectiveness of the method, the synthesis of a fiber
Bragg grating with triangular spectrum is presented.
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P1B-15 Chirped Sampled Fiber Bragg Grating Based Multi-Wavelength Fiber Ring LaserSun Qizhen
Discrete phase shifts are introduced in each sampling section along a chirped sampled fiber Bragg grating (FBG)
structure to realize a multiple-reflection-band reflector. Various channel spacing can be achieved by a single strongly
chirped phase mask where the required phase shift can be controlled by a precise translation stage. An
eight-wavelength semiconductor optical amplifier (SOA) based fiber ring laser is designed and experimentally
demonstrated, by incorporating such multi-channel FBG reflector with channel spacing of 2.0 nm acting as
wavelength selection in the fiber ring cavity. This kind of laser will be useful in applications requiring
multi-wavelength components
P2B-10 Chirp Tuning of a Dual-wavelength Fiber Bragg Grating by Using a Loop Thin-wall Section Beam Guiling Huang, Qida Zhao, Meng Jiang, Lifang Xue, Yinping Miao, Songfen Liu
In this paper, for the first time to our knowledge, we proposed and demonstrated a novel method to introduce large
chirp to a dualwavelength fiber Bragg grating (FBG) realized by gluing the grating to the outer surface of a loop
thin-wall section beam (LSB). The bandwidth of the grating can be tuned through changing the force while the fiber
grating locates at different special positions. when the positional angle θ = 45and the LSB applied an approximately
6 kg mass, the dual-wavelength FBG was turn into a chirp grating with about 3nm bandwidth. The experimental
results are coincident with the theoretical analyses.
P2A-11 A Novel Fiber Laser Based Fiber Bragg Grating Strain Sensor with High- Birefringence Sagnac Fiber Loop Mirror Xu Ou, Lv Bo, Lu Shaohua, Feng Suchun, Jian Shuisheng
A novel fiber laser based strain sensor is proposed and experimentally demonstrated. The laser cavity is composed
of a high-birefringence Sagnac fiber loop mirror (HiBi-SFLM) and a fiber Bragg grating (FBG), which also acts as a
strain-sensing element. In the linear region of the HiBi-SFLM reflection spectrum, when strain applied on the FBG
makes the Bragg grating wavelength shift, the laser output power changes, caused by reflectivity variation of the
HiBi-SFLM. And experimental results show that the laser output power varies almost linearly with the applied strain.
The measurement of the output power can be performed by a conventional photo-detector.
P2B-8 Simultaneous Measurements of Temperature and Strain Based on TFBG Zhang Weihua
Tilted fiber Bragg grating, an important member of fiber gratings, because of its special structure, not only has all
properties of fiber Bragg grating, but also has its own unique properties. With the fiber sensitivity enhanced and the
technology of fabrication fiber grating improved, tilted fiber Bragg grating with an excellent character comes true,
which have been used in the area of gain flatten, sensing system and wavelength demodulation.The sensing theory
of tilted fiber Bragg grating is presented . Theoretical and Experimental research on its temperature sensing
characteristic, strain sensing characteristic have been taken. In this paper, a single tilted fibre Bragg grating(TFBG)
is used to measure the temperature and strain simultaneously based on the experiment .
87
P2B-9 Highly Sensitive Thz-Wave Detection Using Parametric Up-Conversion Ruixiang GUO,Seigo Ohno,Hiroaki Minamide,Tomofumi Ikari,Hiromasa Ito
We report the experimental results of coherent detection of monochromatic tunable nanosecond terahertz radiation
at room temperature using frequency conversion in a nonlinear MgO:LiNbO3 crystal. Mixing the THz radiation with a
near-infrared intense pump pulse results in the excitation and amplification of the difference-frequency component,
which is detected with an InGaAs-based photodiode. We demonstrate this method in a fast and very sensitive
THz-wave detection. It is capable of capturing the temporal profile of terahertz pulses with nanosecond resolution,
and it is at least one order more sensitive than a typical liquid-He-cooled Si bolometer for detecting monochromatc
THz-wave beams. Furthermore, phase information of THz-wave radiation is measured using homodyne detection.
One may determine both the real and imaginary parts of a sample’s dielectric function simultaneously using this
detection method.
P2B-7 Kerr-like Nonlinearity Induced via Terahertz Generation in Periodically Poled LiNbO3 Hong Su
Based on terahertz generation and optoelectronic effect, Kerr-like nonlinearity in a thin periodically poled lithium
niobate crystal is induced by heterodyne optical Kerr effect setup of femtosecond pulse. The noninstantaneous
response charater is reported. Its competition with a third-order optical Kerr effect is demonstrated.
A Akutagawa, Masatake 49, 81 Aron, F 52
B
Baek, Youngmi 78 Beltram, F 65 Bhattcharyya, Shuvra B. 50
Binh, Le Nguyen 72 Bouridane, Ahmed 54
C
Chan, C. C. 62, 84 Chan, Chi Chiu 84 Chan, Hao 47 Chan, L. H. 84 Chen, Bafu 55 Chen, Chang-juan 77 Chen, Haiqiang 60 Chen, Hongwei 31 Chen, Jing 80 Chen, Junliang 51 Chen, Ke 80 Chen, Lin 45 Chen, Xiangfei 31, 43 Chen, Xiuzhong 51 Chen, Yongjian 49 Chen, Zhangjin 84 Cheng, David 44 Cheng, Sheng-Tzong 55 Cheng, Tee Hiang 59 Cheng, Xueping 47 Cheng. T.H. 61 Chiang, Kin Seng 31 Cho, Keuchul 78 Choi, Minho 56, 60 Chong, Peter Han joo 79 Chook, Vince 57 Choong, Yow Kin 40 Chung, Youngjoo 32 Cui, Sheng 46
D Dai, Xian-hua 77 Deldari, Hosein 58 DeSanti, Claudio 32 Ding, Jinfei 63 Dong, Hui 70 Dong, Ligang 80 Dong, X. Y. 62 Dong, Xiaoyi 73 Dong, Xinyong 33, 65, 85 Dong, Ze 45, 46 Du, Jinfeng 54 Duan, Gaoyan 44
E
E. Beere, Harvey 65 Emoto, Takahiro 81
F
Fang, Nan 77 Fang, Xiao-Hui 33 Feng, Chen 61, 77 Feng, de-jun 72 Feng, Suchun 86 Feng, Xinhuan 33 Fenner, David B. 65
Fu, Songnian 42, 43, 68, 72
Fu, Xiuju 59
G
Gao, Chao 82 Gao, Fuxiang 53 Gao, Hongwei 81 Ghazizadeh, Mostafa 58 Gong, Yandong 44, 66, 72 Green, R 65 Gu, Junjun 50, 54 Gu, Wanyi 51 Guan, Bai-Ou 33 Gui, Xiang 39, 55 Guo, Chan 57 Guo, Hongchen 65 Guo, Ning 43, 69
Gupta, Rashmi 56 Guo,Ruixiang 87
H
Ha, Namkoo 52, 60 Habib, Shahid 59 Hamam, Y. 52
Han, Kijun 47, 52, 56, 60, 78
Han, Laiquan 48 Han, Yishi 43 Haywood, Richard 80 He, Deqiang 49 He, Guizhen 42 He, Jing 45 He, Yongqi 46, 61 Heng, K.H. 61 Hensley, Joel M. 65 Hiroaki Minamide 87 Hiromasa Ito 87 Ho, H. L 62 Hong Peilin 57 Hong, K.S. 62 Hou, Chunping 76 Hraimel, Bouchaib 43 Hu, Fengming 58 Hu, Juan Juan 47, 66, 71 Hu, Mingxiu 57 Hu, Rui-min 50 Hu, Tao 75 Hu, Y. F 57 Huang, Guiling 85, 86 Huang, Lin 71 Huang, Xingfa 44 Huang, Ying 62
J
Javaid, Ahmad Yazdan 59 Jean, Chazelas 45 Jean-Pierre, Huignard 45 Jian, Jinbao 59 Jian, Shuisheng 72, 86 Jiang, De-sheng 64 Jiang, Joy 34
Jiang, Meng 86 Jiang, Ming-shun 72 Jiang, Shengming 34 Jin, Wei 38, 62 Jin, Yaohui 35 Jing, Meng 49 Ju, Jian 62
K
Kai, Guiyun 73 Keiser, Gerd 30 Kim, Junhyung 47 Kim, Kihyun 56 Kinouchi, Yohsuke 49, 81 Konaka, Shinsuke 81 Kwok, Yien Chian 68
L
Lam, Quoc Huy 72 Lau, John H. 62 Lawrence, Yeung 40 Lee, Byeongjik 47 Lee, Byunghwa 47, 52 Lee, Chang-Hee 43 Lee, Ching Kwang 52 Lee, Chung Ghiu 32 Lee, El-Hang 35 Lee, Honggil 60, 78 Lee, Icksoo 56, 78 Li, Fengfeng 76 Li, Jianqiang 68 Li, Jilong 56, 60 Li, Jing 45 Li, Ruo-ming 85 Li, Taoshen 59 Li, Xinbo 76 Li, Xinwu 51 Li, Xu 77 Li, Xue Jun 79 Li, Xuejin 41, 61 Li, Yuquan 43 Li, Zhengyong 70 Li, Zhuoyue 53 Liang, D.T.W 57
Liang, Mangui 81 Liao, Jian-qiang 77 Liao, Su-yun 55 Lin, Wei 61 Liu, Bo 63, 64 Liu, Chuanchang 51 Liu, Deming 36, 46, 64 Liu, Dongyan 73 Liu, H.J 70 Liu, Haibo 42 Liu, Hairong 73 Liu, Jianguo 72 Liu, Jiren 47 Liu, Lin 79 Liu, Mingxin 80 Liu, N 61 Liu, Ning 76 Liu, Qingchao 48 Liu, Sheng-chun 64 Liu, Songfen 85, 86 Liu, Xuejiao 66 Liu, Yange 36, 63 Liu, Yongqiang 53 Liu, Yunqi 36 Lu, Chao 47 Lu, Hancheng 57 Lu, Hongqing 46 Lu, Jia 45 Lu, Lin 43 Lu, Man-jun 78 Lu, Shaohua 86 Lu, Tiejun 49 Lu, Yilong 76 Lu, Zhaoxia 47 Luo, Bingmin 49 Luo, Hui-ping 55 Luo, Jie 64 Luo, Xinfang 52, 53 Lv, Bo 72, 86 Lv, Fuyun 63, 73
M
Ma, Lin 74 Ma, Maode 74, 76
Mcloughlin, Ian 53 Mei, Chengqiang 42 Meng, Hongyun 43 Meng, Jintao 80 Miao, Jian 49
Miao, Yinping 64, 73, 85, 86
Mohamed, Mohmoud 43 Mu, Qiang 83 Myriam, Kaba 45
N
Ngo, Nam Quoc 45 Niu, Dongxiao 48
O
Olwal, T. 52
P
Pang Bin 77 Peng, Xiao-Hong 80 Perrine, Berger 45 Piecek, Wiktor 38 Prakash. P, Shiva 53 Pu, Tao 43 Pun, E.Y.B. 69
Q
Qadeer, Mohammad Abdul 59
Qi, Man 50 Qin, danyang 78 Qin, Fuxiang 69 Qin, Kun 49 Qin, Tuanfa 55, 60 Qiu, Kun 35 Qu, Gang 50, 54
R
Ran, Feng 62, 84 Ren, Guobin 66, 68, 71 RIKEN, Sendai 87 Ritchie, David A. 65 Ruan, Shuangchen 63
S
Seigo Ohno 87 Sha, Xuejun 78 Shang, Junna 60 Shao, L. Y 62 Shao, Liyang 63, 65, 85 Shao, Xuguang 81 Sheng, Qiuqin 69 Shi, Qing 63, 73 Shi, Yaowu 76 Shu, Yantai 74
42, 43, 44, 45, 47, 62
Si, Xi-cai 78 Signell, Svante 54 Singh, Gurpreet 56 Su, Hong 63, 87 Su, Yikai 37 Sui, qing-mei 72 Sun, J. 62 Sun, Jian 84 Sun, Jianping 82 Sun, Qizhen 86 Sun, Runguang 83 Sun, Zhifeng 68
T
Taghiloo, Majid 57, 66 Tam, Hwa-Yaw 65, 85 Tan, Xuezhi 74 Tan, Zhenhui 61, 77 Tang, Hao 83 Tang, Jian Ming 37 Tang, Lun 58
Tang, Ming 44, 62, 71, 72, 74
Tang, Peichyi 44 Tang, Sing hai 65 Tang, Zhi-jie 62 Tao, Junhao 63 Tian, Changyong 43 Tian, Xiaolong 44, 71
Tomofumi Ikari 87 Tong, Weiming 81 Tredicucci, A 65 Tse, Chun Ho 45 Tu, Feng 45, 64 Tu, Qinchang 85
V
Van Wyk, B. J 52
W
Wada, Naoya 37 Wang, Bo 53 Wang, Cuirong 48 Wang, Cui-ru 82 Wang, Guanghui 66, 71 Wang, Honghai 45 Wang, Jian 68, 71 Wang, Jinkuan 48 Wang, Minxue 42 Wang, Qing 76 Wang, Song 45 Wang, Weijun 48 Wang, Weiqiang 46 Wang, Xiufeng 83 Wang, Xiuru 83 Wang, Yaqiong 77 Wang, Yin 46 Wang, Yubo 59 Wang, Zhenyong 69 Wang, Zhi 73 Wang, Zongmin 49 Wei, Hongbo 45 Wei, Xin 50 Wen, Shuangchun 45 White, Ian H 34 Wong, Elaine 39 Wu, Chongqing 43, 70 Wu, Jianhua 79 Wu, Ke 43 Wu, Meng 48, 52 Wu, Ti 70 Wu, Weiqiang 56, 61 Wu, William 53
X
Xi, Jie 47 Xi, Lixia 44 Xia, Li 43, 45, 64 Xiao, Debao 66 Xiao, Du 49 Xiao, Gaoxi 56, 59 Xiao, Shi 59 Xiao, Xiaosheng 68 Xiao, Zhou 77 Xie, Shengdong 48, 52 Xu, An shi 46 Xu, Changbiao 76, 79 Xu, He 79 Xu, Jihua 65 Xu, Kaikai 44 Xu, Meihua 62, 84 Xu, Ou 72, 86 Xu, Shiyu 60 Xu, Yang 74 Xu, Yubin 78 Xue, Jingteng 50 Xue, Kaiping 57 Xue, Lifang 86 Xue, Ping 75
Y
Yan, Shuangyi 46 Yan, Zhenghang 76 Yang, Dan 83 Yang, Huaqiang 53 Yang, Linfeng 59 Yang, Sooyeol 60 Yang, Xiufeng 39 Yang, Yuhang 76 Yang, Zhihuang 48 Yang, Zhi-Min 60 Yao, Aihong 54 Yao, Lan 53 Yao, Rui-peng 62 Ye, Wang 48 Ye, Z.Q 70 Youn, Hee Yong 58
Yu, Jian 75 Yu, Jianjun 45 Yu, Li 74
Yu, Xia 45, 66, 68, 71
Yu, Xiang-bing 82 Yu, You-long 85 Yuan, Chi 42 Yum, Tak-Shing Peter 30 Yun, Jangkyu 47, 52 Yun, Jeongbae 52
Z
Zhan, Yi 78 Zhang, Chun Min 40 Zhang, Cong 50 Zhang, Fanghui 83 Zhang, Han 76, 77 Zhang, Jian-Guo 46 Zhang, Jie 51 Zhang, Jing 62 Zhang, Jinxin 81 Zhang, Junjie 69 Zhang, Liren 81
Zhang, Qinyu 48, 49, 56, 61
Zhang, Qishan 75 Zhang, Tongtong 63 Zhang, Weihua 86 Zhang, X.J 70 Zhang, Xiaoguang 44 Zhang, Xinliang 41 Zhang, Xiupu 43 Zhang, Y. F. 62 Zhang, Yalin 61 Zhang, Yi Fan 84 Zhang, Zhao-feng 58
Zhang, Zhenrong 46, 49, 59, 60
Zhang, Zhongzhao 74 Zhao, Jian 80 Zhao, Li 50 Zhao, Luming 85 Zhao, Qida 64, 85, 86
Zhao, Wei 46 Zhao, Yan 75 Zhao, Zhijin 60 Zheng, L. T. 62 Zheng, Shi 56 Zheng, Zhihua 79 Zhong, W.D. 61 Zhong, Yiming 63 Zhou, Haibin 63, 73 Zhou, Hong 73 Zhou, Huimin 42 Zhou, J.Q. 69 Zhou, Jun 69 Zhou, Junqiang 47 Zhou, Shutong 63 Zhu, Leiqi 75 Zhuang, Xin 66 Zu, Yuan 57
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