SRC activities by qao20272

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									Short Range Communications
    Research at the CWC

                       Zach Shelby
            Research Manager - SRC
             zach.shelby@ee.oulu.fi



                                 - Alan Kay
           SRC defined

“Communication technologies for demanding
    low-power, short-range applications”



        Research topics include:

       Algorithms and architectures
       Cross-layer protocol research
           Convergent networks
       Innovative low-power radios


                                            2
               Application areas




 Consumer          Automation      Security &
Applications        Industry        Defence
                                                3
                  SRC resources


• Prof. Jari Iinatti
   – Communications theory
   – Ultra wideband
• Prof. Carlos Pomalaza-Ráez
   – Ad hoc and sensor networks
• Dr. Matti Hämäläinen
• Dr. Giuseppe Abreu (Docent)
• Dr. Ian Oppermann (Docent)
• About 20 researchers (post-docs, Dr. students, M.Sc.
  students)
• Experimental eLab for implementation & measurement
• Computer simulation with Matlab, Opnet & ns-2

                                                         4
Sensor networking research - current
          project portfolio

  EU-FP6 funded     TEKES funded
  • Pulsers         • WIRSU
  • e-Sense         • UWEN
  • Cruise (NoE)    • WILHO
                    • Ski tunnel demo
  FDF funded
                    • Tekes-UbiComm
  • Lanse
                      program is starting
  • Sender            ;-)




                                            5
CWC is focused on               ...           (1)

  • Wireless communications for low-power
    sensing and control applications
  • Demanding requirements
     – Ultra-low power for long lifetime
     – Large networks, difficult topology changes
     – Self-forming networks
     – Data-centricity
     – Gateway architectures
  • Heterogeneous networks
  • Convergent networks


                                                    6
CWC is focused on                ...              (2)

• Processing data coming from a sensor (node)
   – digital signal processing
• Data transmission from the sensor node to the
  backbone network
   – different radio technologies
   – energy efficient channel coding
   – adaptive cross-layer protocols
   – routing algorithms
   – multi-hop
   – nanoIP
   – nanoMAC


                                                        7
            Cross-layer routing research


• Realistic requirement
  specification for convergent
  sensor network
• Definition of convergent
  sensor network architecture,
  protocols and scenarios
• Study the performance and
  scalability of the routing
  protocols in the defined
  convergent sensor network




                                           8
         nanoIP and nanoMAC
    => currently included in 6lowpan

• nanoIP protocol architecture
  for embedded networking
   – 5 byte nanoUDP
   – 9 byte nanoTCP
   – Socket interface
   – Open source
       • http://www.cwc.oulu.fi/na
         noip

• nanoMAC: A low power MAC
  for sensor networking
   – aggressive sleeping
   – low overhead
   – power & performance
      analysis
                                       9
                            e-Sense

• The e-Sense project is an EU FP6 project on convergent wireless
  sensor networks (2006-2007)

• The goal is to develop cross-layer protocols and architectures that
  support the integration of next generation context collection using
  wireless sensors with B3G
   – energy-efficient sensor node and sensor network architecture
   – ultra low-power air-interface designs
   – efficient wireless sensor networking protocols
   – distributed processing middleware

• CWC is leading the networking work package and has been active
  in architecture and demonstration activities



                                                                 10
                                 http://www.ist-e-sense.org/




Power consumption minimisation
Embed-ability (size and cost)
Self-configuration
Mobility effects                                                                Self-configuration
                                                                                Reliability & robustness
                                                                                Scalability
                                                                                Power consumption minimisation
                                                                                Embed-ability (size and cost)




                                                          Self-configuration
                                                          Rapid ad hoc access
                                                          Scalability


                                                                                                11
            Wireless hospital research

• Wireless Hospital Project (WILHO)
   – TEKES, WHealth, OUH, ODL,
      Ekahau,                                               UWB/WLAN

      ISG lab, OEM lab                                           Access
                                                                  Point
• CWC research on applying UWB to
  hospital environments
• WHAN, WPAN, WBAN, PBS
• Different short range technologies            PBS
   – Zigbee, UWB, BT, Wibree, …
                                       Sensor
• Architecture & performance
• Demonstration (phase II)

• The same WPAN approach could also
  be suitable for military WPAN/WBAN             PBS = Portable base station



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•   ISG – WILHO
     – Zigbee module to be connected to
       N770’s USB port
     – To connect to RFID reader

•   EU – WILHO
     – Wireless health/wellcare outside of
       hospitals
         • Key players: Telefonica, NXP (ex-
           Philips Semiconductor), CSEM, Univ.
           Of Surrey, Univ. Of Loughborough,
           Univ. Of Oulu, Whealth, ...
             –   process improvement
             –   technical development


•   Co-operation in wireless healhcare sector
    with NICT/MICT (Japan) to be started
     – Part time professor from Japan




                                                 13
Ski tunnel demo in Vuokatti



                    Zigbee nodes




                Sensor and
                positioning data


                                   14
             PulsON UWB demo

• Exact positioning                  800




   – Ranging
                                     700

                                     600

                                     500



   – 2D/3D positioning               400

                                     300




• Live video streaming
                                     200




                          Vout, mV
                                     100

                                       0


• Interference research              -100

                                     -200

                                     -300

                                     -400

                                     -500

                                     -600

                                     -700
                                            2.4   2.5   2.6   2.7   2.8   2.9   3.0   3.1     3.2   3.3   3.4   3.5   3.6   3.7   3.8

                                                                                 time, nsec




                                                                                                                            15
          Military sensor network demo
                                                                                       IEEE 802.15.4 radio &
                                                                                       6lowpan protocol stack



• Joint demonstration with                                          passive IR
                                                                     sensor
  Sensinode
                                                  Road reuna
                                                  Tien                                       track
                                                                        &
                                                                      RSSI
• Several fixed sensor nodes
  having                                             magnetic
   – passive IR sensors                              sensors
                                      Small ha
       • to detect motion in the      vehicle
                                                                                               Sensor
                                                                                              sensori
         environment
                                                                Demo
                                                                 Demo-
   – magnetic sensors                                           intruder
                                                                vihollinen
       • to detect vehicles and the
                                      Big bussi
                                      vehicle
         direction of movement
   – RSSI positioning of intruder
                                                                             gateway
       • locating the RF source
   – multihop                                                                 USB

                                                                                           PC + display
                                                                                           Pc+esitysjärjestelmä
• Demonstrated 15.2.2007

                                                                                                     16
           Work done also for Wibree

• Nokia’s new Wibree concept
   – Ex-Bluetooth Lite concept
   – Work for early Wibree has been done at the CWC



Wibree radio specification:
Wibree radio specification enables dual-mode implementations to reuse
Bluetooth RF part but also to guarantee ultra low power consumption for
devices with embedded stand-alone implementation of the Wibree
specification. Wibree operates in 2.4 GHz ISM band with physical layer
bit rate of 1 Mbps and provides link distance of 5-10 meters.
                                                              www.wibree.com




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           SRC core expertise areas

• Different wireless standards
   – IEEE802.15.3a: high data rate UWB
   – IEEE802.15.4/4a: ZigBee, low data rate UWB
   – IEEE802.11: WLAN
   – Wibree, Bluetooth
   – NFC, RFID
• Working mainly in PHY, MAC and NET OSI layers
   – PHY algorithms
   – DSP algorithms
   – Dedicated MAC design
   – Routing algorithms
   – Cross-layer design
• Energy efficient WSN channel coding
• Design, building and implementation of demonstrations


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