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An Improved LEACH Protocol with Fuzzy Logic Technique

J. Rathi, G. Rajendran


A wireless sensor network (WSN) is absolutely an ad hoc wireless telecommunication networks arranged in an extensive area with little, limited-power tidy sensor nodes. The WSN incorporates all unprocessed data sent from sensor devices under wire/wireless telecommunication transportation arranged in an extensive area, and generates a set of sensed environmental data to relate with real application services. LEACH (Low Energy Adaptive Clustering Hierarchy) is one of the most significant cluster-based routing protocols which have been extensively used in WSN. LEACH exploits a TDMA dependent MAC protocol, and with the purpose of maintaining reasonable energy utilization, recommends that each node probabilistically turns into a cluster head. Clusterhead is chosen by its adjacent networks. Clusterhead selection turns out to be an important problem because of its dynamic environment. With the intention of reducing the energy utilization, in this paper, proposed an enhancement on the Leach Protocol that further improves the Power utilization. The fuzzy logic technique for clusterhead selection is proposed in this paper based on three descriptors, namely, Energy, Concentration and Density. Simulation result confirms that the proposed protocol outperforms Leach protocol in term of energy utilization and considerably increases the overall throughput.


Wireless Sensor Networks, Fuzzy Logic, sensor networks, Cluster head

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