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Distributed Fault-Tolerant Event Detection for Non-Symmetric Errors in Wireless Sensor Networks

, , and . International Journal on Soft Computing, Artificial Intelligence and Applications (IJSCAI), 3 (2): 12 (May 2014)
DOI: 10.5121/ijscai.2014.3203

Abstract

Wireless sensor network (WSN) are powered by batteries to perform various sensing tasks in a given environment. The measurements made by the sensors are sometimes unreliable and erroneous due to noise in the sensor or hardware failure. For a large scale WSN to be economically feasible, it is important to ensure that the faulty node does not affect the overall behaviour of the system. In this paper a binary faulttolerant event detection technique has been proposed for the non-symmetric errors and its performance has been analysed. Theoretical analysis and simulation show that almost 97 percent of faults can be corrected even when 10 percent sensor nodes are faulty.

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