WIDENS and MESA

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WIDENS and MESA

• Walter Legrand, EADS
• Vania Conan, THALES
• MESA, 26 October 2005

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WIDENS Project Factsheet

• RD project (www.widens.org)
• 8 partners mix of academia and indusry (ETSI
  members Thales, EADS, HUT, Eurecom)
• 3 Meuros budget, 2 year effort ending on 31 Jan
  2006
• Target
• Investigate technologies applicable to MESA type
  incident area networks
• Validate it with a prototype system and
  demonstration
• A platform to experiment/validate technologies

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Purpose of presentation

• Approach
• Based MESA DTR 70.0012 V1.2.6 (2005-10) as a
  reference in the presentation
• Identify links between MESA and WIDENS technology
  developments
• Goals
• Provide feedback on the WIDENS approach to MESA
• Receive feedback from MESA on the WIDENS approach

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Positionning in the architecture

• WIDENS as an example MESA IAN

Backbone
Network
Base Station 2
Base Station 3
Base Station 1
Sensor
Sensor
Device 2
Sensor
Network
Sensor
Incident Area
Network
Ad hoc Widens network
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WIDENS Wireless interface

• Tightly coupled MAC/PHY
• Hierarchical scheduling driven by wideband
  channel quality and traffic volume
• TDD, but potentially multi-frequency
• Time-slotted, distributed network timing synch
• Not connection oriented
• channel access is quasi-random but
  contention-free (inside cluster) due to
  feedback-based scheduling.
• Dynamic OFDM(A)-based, multi-antenna capable (2,4
  TX/RX)
• Coded Modulation
• 802.11a coded-modulation (default)
• MIMO STC (TAST) in P2P links
• concatenated coding possible although not
  specified at present

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WIDENS Network

• Reservation scheme
• Flow-based reservation
• Several traffic classes are possible
• RSVP-like reservation mechanism
• Multi-hop routing based on adaptations of OLSR
• Introduction of QoS information in the topology
  set of the network
• Choice of next-hop to destination based on QoS
  constraints
• Connection Admission Control
• based on hello messages received from 1-hop
  neighboring nodes
• Securing the routes
• Authentication of nodes (X509.v4 certificates,
  RSA and ECC keys)
• Cross-layer optimisations
• For routing 1-hop and 2-hop neighbourhood
  discovered by MAC
• For QoS mapping of network Qos classes to MAC
  layer queues

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WIDENS node architecture overview
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WIDENS as an example ad hoc IAN
WIDENS ad-hoc network (p2p)
WIDENS MAC Cluster head
WIDENS Cluster
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Demonstration on January 26th 2005in Sophia
Antipolis
Eurecom building
Garbejaïre village
Control room
Team
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Topology
Cluster 1
Cluster 2
Control room
Team
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Equipment

• A new PCMCIA Module is developed to demonstrate
  the feasibility of hardware solutions of the
  WIDENS system
• MIMO capable (two-antennas)
• multi-frequency capable (2 GHz today and 4-6 GHz
  at end of project)
• An important part of signal processing can be
  performed on the onboard FPGA in order to reduce
  the burden on the host PC.
• A choice was made for the Linux OS to develop the
  networking functionalities
• The UniK OLSR deamon was chosen as a starting
  point
• XORP Platform
• CLICK Forwarding Plane

WIDENS-specific equipment (2GHz)
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Demonstration features

• Main features
• Communication between two clusters
• Mobility of a node between the two clusters
• Multihop routing in BE and with QoS (reservation,
  CAC)
• Voice communication between any two nodes
  (multihop narrowband UDP traffic)
• Simultaneous access to the database from two
  nodes (multihop narrowband TCP traffic)
• Video streaming (broadband TCP traffic)
• Secure routing
• Deployment tool
• Interested by attending the demo ?
• Send an email to vania.conan_at_fr.thalesgroup.com

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WIDENS

• Thank you for your attention!
• www.widens.org