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Sensors 2007, 7(6), 1001-1027;

Distributed Peer-to-Peer Target Tracking in Wireless Sensor Networks

State Key Laboratory of Precision Measurement Technology and Instrument, Tsinghua University, Beijing 100084, P. R. China
Author to whom correspondence should be addressed.
Received: 6 June 2007 / Accepted: 25 June 2007 / Published: 25 June 2007
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Target tracking is usually a challenging application for wireless sensor networks(WSNs) because it is always computation-intensive and requires real-time processing. Thispaper proposes a practical target tracking system based on the auto regressive movingaverage (ARMA) model in a distributed peer-to-peer (P2P) signal processing framework.In the proposed framework, wireless sensor nodes act as peers that perform target detection,feature extraction, classification and tracking, whereas target localization requires thecollaboration between wireless sensor nodes for improving the accuracy and robustness.For carrying out target tracking under the constraints imposed by the limited capabilities ofthe wireless sensor nodes, some practically feasible algorithms, such as the ARMA modeland the 2-D integer lifting wavelet transform, are adopted in single wireless sensor nodesdue to their outstanding performance and light computational burden. Furthermore, aprogressive multi-view localization algorithm is proposed in distributed P2P signalprocessing framework considering the tradeoff between the accuracy and energyconsumption. Finally, a real world target tracking experiment is illustrated. Results fromexperimental implementations have demonstrated that the proposed target tracking systembased on a distributed P2P signal processing framework can make efficient use of scarceenergy and communication resources and achieve target tracking successfully. View Full-Text
Keywords: Wireless sensor networks; target tracking; distributed signal processing; peer- to-peer; ARMA model. Wireless sensor networks; target tracking; distributed signal processing; peer- to-peer; ARMA model.
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Wang, X.; Wang, S.; Bi, D.-W.; Ma, J.-J. Distributed Peer-to-Peer Target Tracking in Wireless Sensor Networks. Sensors 2007, 7, 1001-1027.

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