Cluster Head Failure Detection and Correction Algorithm for WSN

Abstract

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Wireless Sensor Networks (WSN), consists tiny but powerful devices to monitor or sense specific phenomena, e.g. temperature, visual, humidity etc. In WSNs nodes are deployed in the harsh and unattended environment. In such scenario, nodes may fail due to various reasons, e.g. link failure, battery depletion, hardware/software failure etc. In order to provide a reliable network, fault-tolerant network is required. Furthermore in WSN, energy is one of the major constraints, due to irreplaceable batteries. There have been various techniques proposed for fault tolerance and energy saving by detecting and correcting node failure. In this paper, the proposed algorithm called Cluster Head Fault Detection and Correction algorithm (FDFC), detects Cluster Head (CH) failure in a distributed manner and replace a faulty node. In this work, all the CHs present in network share status data with all the other CHs. Besides fault detection, this algorithm also suggests faulty node replacement technique. The effectiveness of the proposed algorithms is validated through simulation experiments.