SRC activities

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Short Range Communications Research at the CWC
Zach Shelby Research Manager -
SRC zach.shelby_at_ee.oulu.fi
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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

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Application areas
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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

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Sensor networking research - current project
portfolio

• TEKES funded
• WIRSU
• UWEN
• WILHO
• Ski tunnel demo
• Tekes-UbiComm program is starting -)

• EU-FP6 funded
• Pulsers
• e-Sense
• Cruise (NoE)
• FDF funded
• Lanse
• Sender

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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

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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

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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

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nanoIP and nanoMAC gt 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/nanoip
• nanoMAC A low power MAC for sensor networking
• aggressive sleeping
• low overhead
• power performance analysis

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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

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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
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Wireless hospital research

• Wireless Hospital Project (WILHO)
• TEKES, WHealth, OUH, ODL, Ekahau, ISG lab, OEM
  lab
• CWC research on applying UWB to hospital
  environments
• WHAN, WPAN, WBAN, PBS
• Different short range technologies
• Zigbee, UWB, BT, Wibree,
• Architecture performance
• Demonstration (phase II)
• The same WPAN approach could also be suitable for
  military WPAN/WBAN

UWB/WLAN Access Point
PBS
Sensor
PBS Portable base station
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• ISG WILHO
• Zigbee module to be connected to N770s 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

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Ski tunnel demo in Vuokatti
Zigbee nodes
Sensor and positioning data
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PulsON UWB demo

• Exact positioning
• Ranging
• 2D/3D positioning
• Live video streaming
• Interference research

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Military sensor network demo
IEEE 802.15.4 radio 6lowpan protocol stack

• Joint demonstration with Sensinode
• Several fixed sensor nodes having
• passive IR sensors
• to detect motion in the environment
• magnetic sensors
• to detect vehicles and the direction of movement
• RSSI positioning of intruder
• locating the RF source
• multihop
• Demonstrated 15.2.2007

PC display
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Work done also for Wibree

• Nokias 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