4a+b S. Fischer Wisebed

WISEBED – Experimental Facilities for Wireless Sensor
Stefan Fischer
Institute of Telematics, University of Lübeck
http://www.itm.uni-luebeck.de

WISEBED
Internet
2
Lübeck
As of today, isolated testbeds exist across Europe
WISEBED
Infrastructure of interconnected testbeds (9 sites, >1500 nodes)
Heterogeneous hardware setup (>8 platforms)
Federation of distributed test laboratories
100 TelosB
500 pacemates
100 iSense
20 Acer Netbooks
10 Roombas + iSense

WISEBED
3
Deploy large numbers of heterogeneous sensor nodes
Different types of sensors, topologies and environments
Evaluation and test of algorithms and protocols at large scale
Operate testbeds to collect traces of data from the environment
Derive models of real-life situations and scenarios for simulations
Evaluate the performance of algorithms and systems
Draw conclusions on their operation and how it can be improved
Interconnect these testbeds via the Internet
Virtual unifying laboratory for testing and benchmarking
Remote access to reduce the need for local, private testbeds
Define a standard (OFA – Open Federation Alliance)
Develop a software library (WISELIB)
Turn existing theoretical results into software
Provide a repository of algorithms, mechanisms and protocols
WISEBED

WISEBED Virtual Unifying Laboratory
4
Testbed Portal Servers at
each WISEBED Partner Site
Overlay Software running on the Portal Server
Each WISEBED Partner maintains its own testbed with different hardware equipment and setup
Overlay
Network
Users connect to a single testbed directly using Web Services defined by the OFA standard
Users connect to the federatedtestbed using the Web Services defined by the OFA standard via the Overlay Network
TUD
TUBS
UBERN
UPC
UZL
ULANC
FUB
UNIGE
CTI

Example: Hardware at Universität zu Lübeck
Stationarysensornode deployment
60 iSense, Pacemate, and TelosB each
Temperature, humidity, light, Passive Infrared (PIR), and accelerometer
Mobile sensornode deployment
10 iSense and Roomba robot
1 Lego Mindstrom NXT robot
Touch, cliff, and dirt
Outdoor sensor node deplyoment
35 iSensor nodes with solar recharge
5

User: coalesenses GmbH
Manufacturer of hardware and software for wireless sensor networks
One current project: Implementation of an IPv6 stack
Ethernet / IEEE 802.15.4
6loWPAN / 6loWPAN neighbor discovery / DymoLow routing
IPv6 / ICMPv6 / IPv6 neighbor discovery / Dymo routing
UDP
Constrained Application Protocol (CoAP)
6

Scenario
7
2001:638:70A:B069::/64
IPv6 / 6LowPAN WSN
Internet
2001:638:70A:B068::/64
IPv6 LAN

Results: Ping delay
8

Conclusion
Easy-to-use testbed infrastructure
Back-end enables convenient and reliable collection of debugging data
convenient tools for debugging
Tools for programming groups of nodes
Large local testbed:
60 nodes of each type, 180 total
Multihop topologies possible
Federation of testbeds
Potentially more than 1000 nodes
Virtual topologies
IPv6 Evaluation
Improvements in stability required
Multihop still untested
Contexts are not yet distributed
9

4a+b S. Fischer Wisebed

by Fire Conference 2010

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