Future Internet in Korea

YangheeChoi SeoulNationalUniversity, FutureInternetForum

2008 Yanghee Choi 2

Internet in Korea

 Wireline subscribers : 23.3 million (Oct. 2007)

 Cellular : 43 million  Internet Users : 34.4 M (75.5%)  IPv4 addresses : 58.8 M  High speed Internet subscribers : 14.7 M(Nov.2007)

  xDSL 31.8%   cable modem 34.9%   apartment LAN 28%   FTTH 5.3%   90.8% of all households

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R&D projects

  Fundamental Technologies for Future Internet   2007 – 2009 (3 years)   1.2 BWon/year

  Future Internet related Innovative Research   From 2008   3-5 year projects for universities (0.2-0.5 BWon/year)

  Robust Mobility Management   Network Monitoring and Measurement at micro-level   Personalized Service Architecture   Security for Survivable Networks

  IT Research Center on Future Internet (2008-2011)

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Fundamental Technologies for Future Internet Project details

 R&D Planning (through Future Internet Forum)

  Identify long-term R&D topics   Predict the future technologies   Promote collaborations

 Work on selected research topics (universities)

  Architecture   Wireless   Services

 Participation to Standard Activities   IETF, ITU, IEEE, forum etc.

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Research Topics - 2008

Research items

 Testbeds   Virtualized

WirelessMesh (KAIST)

  Cognitive Radio (SNU)

  Virtualized Femtocell (SNU)

  Context-aware (ICU)

  Mobility (KU)   Measurement

(KAIST)

 Pioneering concepts   Content-driven

(SNU)   Cross-layer

(POSTECH)   Micro-management

(KAIST)   Hard security (SNU)   Disruption Tolerant

Network (SNU)

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Architecture (1/5)

  Wireless Testbed (Seoul National University)   Goal

  Develop a general testbed for cellular networks

  Cell-lab   Uses WCDMA as access technology   Virtualization of base station by base station head   Users can access remotely to the mobile station and base

station through Internet

Architecture (2/5)

  Transport Architecture in Optical Core Network (Seoul National University)

  Goal   Design a flow-based transport architecture in optical network

  Hierarchical TDM & WDM Optical Transport Architecture   Dispersing a load of core edge (ingress/egress) node to metro

nodes   Switching at Optical layer is expanded into MAN

Architecture (3/5)

  Security Architecture (Seoul National University)   Goal

  Develop an efficient multicast key management scheme

  Balance the logical key hierarchy to reduce network overhead for rekeying   Analyze average number of rekeying message considering user

mobility Key Distribution Center

(KDC)

Broadcasting Message :

Architecture (4/5)

  DTN Interworking Architecture (Seoul National University)   Goal

  Develop a programmable emergency network architecture

  Propose a DTN-based emergency network framework to monitor disaster areas

Architecture (5/5)

  Measurement System (KAIST)   Goal

  Design and implementation of a measurement system for Future Internet

  Improve Delay Estimation with Path Stitching

1. Given user query:  Path and end-to-end delay between a and d 2. AS path inference: 

3. Path segments: 

4. Path s/tching: 

5. Path trimming:

a d ?

A B C D

a1 a2 a3 a4

a2 a3 a4

b1 b2 b3 b4 c1 c2 d1 d2 d3

d1 d2

Query processing

Wireless (1/4)

  Cognitive Radio System (Seoul National University)   Goal

  Propose a new PHY/MAC for Cognitive Radio System

  Analyze centralized/distributed cognitive radio MAC   Analyze spectrum sharing based on overlay/underlay

access

Overlay Spectrum Access Distributed CR MAC

Wireless (2/4)

  Indirection Multicast System (Seoul National University)   Goal

  Propose an indirection-based multicast in Future Internet

  Propose a hierarchical indirection multicast (HIM)   Reflect physical network hierarchy on the logical identifier

Ba6 Ba18

Aa20 Aa5

Aa13

Ab0

Aa20 Aa5

Aa13

Ba6 Ba18 Ab0

source

Aggregation

Wireless (3/4)

  Wireless Mesh Network (KAIST)   Goal

  Develop multi-hop wireless access system architecture and protocols for Future Internet Testbed

  Develop a code set that can be shared both simulator and testbed node

Application Transport Network

Logical Link MAC

Physical Propagation Scheduler OS (Linux)

ATN

L M

P

ATN

L M

P

App. Adaptor Protocol Stack

Scheduler H/W Adaptor

OS (Linux) D/D MAC

Common Code Base Common Code Base

Application

User MAC

GloMoSim Simulator Testbed Node

Wireless (4/4)

  QoS Support in Wireless Access (KAIST)   Goal

  Develop a resource sharing scheme to guarantee QoS in multi-hop wireless network

  Propose a fair rate-allocation scheme   Propose an assured forwarding service in multi-hop network

Simple Mesh Topology Measure Fairness of TCP traffic

Services (1/3)

  Content-Oriented Network (Seoul National University)   Goal

  Develop a content-oriented network architecture and services

  Propose an user-assisted content-oriented overlay networking architecture   Make user-deployable devices (e.g. AP, home BS, etc) form a

novel network for a content distribution service

DACON user

DACON host

DACON portal

DACON border portal

Peer Link

Internal Link

External Link

Services (2/3)

  Interaction Protocol for context-aware Services (ICU)   Goal

  Develop context-aware interaction protocol in mobile ad hoc network

  Propose an immediate context-aware network architecture   Common discovery layer, Profile matching

User Profile Potential Group Profile

User Similarity

Application User Profile

Potential Group Profile

Application User Similarity

Weighted Sum

Potential Group Similarity

Services (3/3)

  Object/Service Discovery (ICU)   Goal

  Develop a semantic resource discovery in MANET/SensorNet environment

  Propose a Multiple Distributed Indices (MDI) to enhance locality preserving   Supporting high-dimensional Range Query in MANET

/SensorNet

Distributed Indexing for Multidimensional data Query Size vs. Average Cost

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Future Internet Forum

  Established in 2006 to promote R&D collaborations in Future networking

  Building research communities

  http://fif.kr   Workshops, seminars,

publications

  Research Council   General guidelines,

technical documents

  Working groups   Architecture   Wireless   Service   Testbed   Policy

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FI (Future Internet) Events

 International Conferences   “Internet of the Future”, July 20-22, 2006,

Seoul, Korea   International Future Internet Workshop 2007,

July 9-10, 2007, Seoul National University   International Conference on Future Internet

2008, June 18-20, Seoul, Korea

 Future Internet Camp   Aug. 20-22, 2007, Jeju Island   Feb. 18-22, Seoul National University (with

AsiaFI school)

  Aug. 25-28, Jeju Island (with AsiaFI school)