Life Time Enhancement of Sensor Network by Using Concept of SEP & LEACH (LEACH-P)

Network life time is the main concern area in wireless sensor network (WSN). Design energy efficient routing algorithm to prolong the network lifetime becomes one of the most important tasks in wireless sensor networks. There are many clustering approaches that were used earlier to enhance the network lifetime. Here, in this paper we have developed a LEACH-P (Leach-Modified) protocol to boost the overall lifetime of the wireless sensor network, that combines the idea of LEACH (Low Energy adaptive protocol) and SEP (Stable Election Protocol) together. LEACH-P basically based on the concept of heterogeneous clustered wireless sensor network, in which energy level of every node is not alike. We have equipped some percentage of total nodes with more energy. We have compared the result of LEACH, MTE and LEACH-P in our simulation and the simulation results show that the performance of LEACH-P is better than both LEACH and MTE.