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Distributed Bayesian Algorithms for Fault-Tolerant Event Region Detection in Wireless Sensor Networks
March 2004 (vol. 53 no. 3)
pp. 241-250

Abstract—We propose a distributed solution for a canonical task in wireless sensor networks—the binary detection of interesting environmental events. We explicitly take into account the possibility of sensor measurement faults and develop a distributed Bayesian algorithm for detecting and correcting such faults. Theoretical analysis and simulation results show that 85-95 percent of faults can be corrected using this algorithm, even when as many as 10 percent of the nodes are faulty.

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Index Terms:
Fault tolerance, event detection, sensor fusion, Bayesian algorithms, wireless sensor networks.
Citation:
Bhaskar Krishnamachari, Sitharama Iyengar, "Distributed Bayesian Algorithms for Fault-Tolerant Event Region Detection in Wireless Sensor Networks," IEEE Transactions on Computers, vol. 53, no. 3, pp. 241-250, March 2004, doi:10.1109/TC.2004.1261832
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