WORLD: UniTN activity in the first 6 months Fabrizio Granelli [email protected] Dipartimento di...

WORLD: UniTN activityin the first 6 months

Fabrizio Granelli [email protected]

Dipartimento di Ingegneria e Scienza dell’informazione


F. Granelli, WORLD Kickoff, Oct. 17th, 2009

UniTN Focus in WORLD Goals:

Cross-layer performance optimization Development of the WORLD wireless 4G testbed

Duties and Activities: WP Leader WP5 “Cross-Layer Wireless Multimedia and Active

QoS Mapping” WP7 “Field Trials and Testbed”

Involved in WP1, WP2, WP4, WP6



UniTN Tasks WP1:

T1.2 “WORLD System Plan” (M6) T1.3 “WORLD System Refinements” (M9) UniTN will provide input on the related

deliverables WP2:

T2.4 “Opportunistic Multi-Antenna Beamforming and Multiple-Access Interference Mitigation” (PHASE II)

Dipartimento di Ingegneria e Scienza dell’informazioneUniTN Tasks

WP2 – T2.4 “Smart Antennas”Main Goals:

Steer the main lobe along the Direction of Arrival (DoA)of the desired signal

Place the nulls along the DoAs of the interferences

SmartAntenna

Interfering

Signal

InterferingSignal

DesiredSignal

Switched-beamSwitched-beam Fully-adaptiveFully-adaptive

Cost and Complexity

Reconfigurability

Cost and Complexity

Reconfigurability

“Continuous” Beam and Nulls Steering“Discrete” Beam and Nulls Steering

Increase theSignal-to-Interference-

plus-Noise Ratio(SINR)


Dipartimento di Ingegneria e Scienza dell’informazioneUniTN Tasks




UniTN Tasks WP4:

T4.3 “Competitive Routing Supporting QoS” (PHASE II)

To optimize WLAN performance by introducing competitive multihop routing in architectures supported by multi-antenna technology platforms



UniTN Tasks WP4:

T4.7 “Network-Adaptive and Media-Aware Transport Mechanisms and Protocols Under E2E QoS Constraints” (PHASE II+III)

WP5 “Cross-Layer Wireless Multimedia and Active QoS Mapping” (UniTN): T5.1 “Content- and Context-Aware Vertical QoS

Mapping” (M13) To define and analyze an efficient context-aware

dynamic resource allocation scheme



UniTN Tasks T5.1 “Content- and Context-Aware Vertical QoS

Mapping” (contd) Service-Aware and Context-Aware HARQ Tuning

Context-Aware Retry Limit AdaptationBase Station

Cellular LinkLayer

SARCmodule

HARQ

Network

Base Station(BS)

Content Provider

Wide-AreaNetwork (WAN)

Mobile Terminal(MT)

Content Provider

Wired Link Layer

RTP/RTCP

VoIP App(G.711)

Transport

Network

Video App(MPEG, H.263)

Data Transfer(FTP, HTTP)

Wired LinkLayer

Wireless Terminal

Cellulare LinkLayer

RTP/RTCP

VoIP App(G.711)

Transport

Network

Video App(MPEG, H.263)

Data Transfer(FTP, HTTP)

SARCmodule

PacketImportance

HARQ

HARQStrength

Set HARQ Strength

Cross-layersignaling

Fixed Host(FH)

IP Network

Mobile Node(MN)

Base Station(BS)

10 Mb/s, 200 ms

IEEE 802.11b, 11 Mb/s

CORREC

Scenario 1: TCP data flow

Scenario 2: Multimedia flow



UniTN Tasks WP5:

T5.3 “Game Theory Based Distributed Radio Resource Management” (PHASE II)

T5.4 “Opportunistic Exploitation of Path-Diversity for Media Streaming” (PHASE II) Ad-Hoc Wireless

Distribution System L2 OLSR



UniTN Tasks WP6:

T6.4 “Multimedia P2P WLAN Connections” (PHASE II)

To analyze QoS requirements of multimedia streaming traffic

To derive guidelines in application-level (i.e. codec) and network-level (i.e. DiffServ classes, resource reservation) parameters setting

Cognitive Configuration Server



UniTN Tasks WP7 “Field Trials and Testbed” (UniTN)

T7.1 “WORLD Solution Integration” (PHASE II+III) T7.2 “Testbed” (PHASE II+III) T7.3 “Trials” (PHASE III)



The WORLD Testbed To provide a real network to implement the

(selected) research products of the WORLD project

+ we can seize the existing WOMEN testbed + UniTN is going to have access to a regional-

wide optical + wireless facility (WOTBL)

- not all solutions will be suitable for integration (feasibility check)

- WOTBL delivery plan still under finalization



The WORLD Testbed (contd) What is already available?

The WOMEN testbed is currently running at DISI premises (802.11a/5GHz)

The testbed is built using Linux-based programmable APs

The software is available on the WOMEN website

An Open Platform for developing and validating



The WORLD Testbed (contd)

“WOMEN” Project Final MeetingTrento, Feb. 12th, 2008



The WORLD Testbed (contd)

15

AP5

AP4

AP2

AP1

AP3

X

XX

XX



The WORLD Testbed (contd) What are we missing?

Long-range connectivity (soon to come, with an HiPERLAN/2 p2p connection between DISI and CREATE-NET)

Users’ authentication (T7.3 – Intelligent Access System)

Extension to multiple NICs and smart antennas

Mobile Mesh Routers (solar-powered?)



The WORLD Testbed (contd) An incremental approach



The WORLD Testbed (contd) Perspectives for partners

To deploy the testbed at their own premises

To contribute to the testbed and trials Integration Roadmap (specifications at M6, delivery at

M19)

To have remote access to the testbed facility (to be checked)



Any questions ?

Fabrizio Granelli

WORLD UniTN Coordinator

E-mail: [email protected]

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