Abstract

AbstractThe selection of cluster heads (CHs) in wireless sensor networks (WSNs) is still a crucial issue to reduce the consumed energy in each node and increase the network lifetime. Therefore, in this paper an energy-efficient modified LEACH protocol based on the fuzzy logic controller (FLC) is suggested to find the optimal number of CHs. The fuzzy chance is combined with the probability of CH selection in LEACH to produce a new selection criterion. The FLC system depends on two inputs of the residual energy of each node and the node distance from the base station (sink node). Accordingly, the modified clustering protocol can improve the network lifetime, decrease the consumed energy, and send more information than the original LEACH protocol. The proposed scheme is implemented using the Castalia simulator integrated with OMNET++, and the simulation results indicate that the suggested modified LEACH protocol achieves better energy consumption and network lifetime than utilizing the traditional LEACH.KeywordsCluster headFISLEACHNetwork lifetimeCastaliaOMNET++ Wireless sensor networks

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