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Proceedings of the 2nd International Symposium on Information Processing (ISIP 2009)

Huangshan, China, August 21-23, 2009

Editors: Fei Yu, Jian Shu, and Guangxue Yue

AP Catalog Number: AP-PROC-CS-09CN002

ISBN: 978-952-5726-02-2 (Print), 978-952-5726-03-9 (CD-ROM)

Page(s): 21-24

An Efficient Approximation Algorithm for Data Aggregation in Wireless Sensor Networks

Zhang ShuKui, Cui ZhiMing, Gong ShengRong, and Fan JianXi

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Event detection is among the most important applications of wireless sensor networks (WSN). Due to the fact that sensor readings do not always represent the true attribute values, Aiming at the problem of low service quality in WSN, a reliable collaborative distributed detection scheme is presented. This algorithm exploits the spatial correlations among sensor nodes, rather than passing large quantities of raw data through the network, our network instead sends the coefficients of a regression polynomial, aggregation the median information, and judges the final state of the event-region. Simulation results demonstrate the superiority of the proposed scheme in the event-region detection.

Index Terms

wireless sensor network, event-region,data aggregation , distributed detection

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