Energy-Efficient Communication Protocol for Wireless Microsensor Networks
HICSS '00 Proceedings of the 33rd Hawaii International Conference on System Sciences-Volume 8 - Volume 8
IEEE Transactions on Computers
IEEE Transactions on Computers
On Distributed Fault-Tolerant Detection in Wireless Sensor Networks
IEEE Transactions on Computers
MDM '06 Proceedings of the 7th International Conference on Mobile Data Management
An application-specific protocol architecture for wireless microsensor networks
IEEE Transactions on Wireless Communications
IEEE Communications Magazine
Distributed classification of Gaussian space-time sources in wireless sensor networks
IEEE Journal on Selected Areas in Communications
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One of the important sensor network applications is monitoring inaccessible environments. The noisy environment and energy constraints, however, challenge the event detection problem. Most of recently proposed fault-tolerant event detection algorithms are only based on the spatial correlation. In these algorithms, the frequent exchanges of measurements among nearby sensor nodes give rise to much energy dissipation. Moreover, detection accuracy is poor at the boundary of event region and the edge of sensor networks. In this paper, we propose a temporal-spatial correlation based fault-tolerant event region detection algorithm. In order to improve the performance, both spatial correlated information and temporal correlated information are employed in the event detection. It is validated through simulations that, the proposed temporal-spatial correlation based algorithm outperforms the spatial correlation based scheme in terms of detection accuracy and energy dissipation, thus making the proposed algorithm attractive in energy-efficient event region detection applications.