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-The nature of wireless sensor networks necessitates specific design requirement, of which energy efficiency is paramount. One of the important parameter in ensuring a good WSN system is the routing protocol. The energy source in WSN is irreplaceable and their lifetime is limited. Thus, an energy efficient routing protocol is inevitable in WSN. This project present the development of an energy efficient routing protocol which consumes significantly less power compared to existing routing protocol for Wireless Sensor Network. The design was developed based on Low Energy Adaptive Clustering Hierarchy (LEACH) routing protocol, intended to reduce the overall energy consumption. Clustering is an energy efficient and scalable way to organize the WSN. The main objective is to minimize the energy dissipation of each sensor node and reduces the energy dissipation for the whole network. Stable Cluster Head Election (SCHE) analyzes the cluster head selection to find the optimal probability of becoming a cluster head. Simulation of Matlab shows that this design reduces communication energy by as much as 95% compared to LEACH, due to stable cluster head election.

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