A Self-organizing Technique for Sensor Placement in Wireless Micro-Sensor Networks

Authors:
TheinLai Wong;Tatsuhiro Tsuchiya;Tohru Kikuno
Affiliations:
-;-;-
Venue:
AINA '04 Proceedings of the 18th International Conference on Advanced Information Networking and Applications - Volume 2
Year:
2004

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Abstract

This paper proposes a self-organizing technique for enhancingthe coverage of wireless micro-sensor networks afteran initial random placement of sensors. A randomizedback-off delay time is introduced to resolve the problemof simultaneous movement of sensors in the neighborhoodwhich will lead to unnecessary excessive movement andhence consume more sensors' energy. A sensor node will relocateitself when the time calculated through randomizedback-off delay computation is reached. The new locationof the sensor is determined by a virtual force-directed algorithmwhere virtual attractive or repulsive forces exertedby other sensors or obstacles are used to guide the sensorto the desired location. The proposed self-organizing algorithmfor sensor placement is proved to be effective throughsimulation.