Title: Energy-Efficient Target Tracking in Sensor Networks
Publisher: Springer
Publication Year: 2010
JRC N°: JRC59640
ISBN: 978-3-642-17993-8
ISSN: 1867-8211
URI: www.springer.com/lnicst
DOI: 10.1007/978-3-642-17994-5_17
Type: Articles in periodicals and books
Abstract: In this paper, the problem of collaborative tracking of mobile nodes in wireless sensor networks is addressed. Aiming at an energy ef- ficient solution, we propose a strategy of combining target tracking with node selection procedures in order to select informative sensors to minimize the energy consumption of the tracking task using the energy model by Heinzelman, 2000. We layout a cluster-based architecture to address the limitations in computational, battery power and communications of the sensor devices. The node selection problem is formulated as a crosslayer optimization problem that is solved using a greedy algorithm. To track mobile nodes two particle filters are used: the bootstrap particle filter and the unscented particle filter, both in the centralized and in the distributed manner. Their performance are compared with the distributed sigma-point information filter in literature, under two common channel models: the log-normal shadowing and the Rayleigh fading.
JRC Directorate:Space, Security and Migration

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