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A review on fault detection in wireless sensor networks

In these days, Wireless sensor network becomes integral part of the computer and communication technology. A huge number of sensor nodes can be deployed in the field of interest to monitor, detect the time critical events by which an emergency of the situation can be evaluated. All the sensor nodes in the network, may not perform well always and it may fail due to several reasons. Fault detection is considered as a vital factor in order to achieve the quality of service, to increase the bandwidth and the lifetime of the network. In this paper, we have classified various fault detection approaches used in wireless sensor networks.