A wireless sensor network (WSN) comprises of economic power obliged sensor nodes gathering information from the detecting territory and transmits information towards the base station synergistically. The essential objective of wireless sensor network is to improve the node life expectancy, soundness period and throughput of network. The WSN nodes are confined by energy, stockpiling limit, and processing power. So grouping is utilized to enhance lifetime and strength. Group directing protocol assumes an imperative part for development of energy and soundness of the network. In this paper a new technique Enhance Threshold Sensitive Stable Election Protocol (ETSEP) is proposed and evaluated for heterogeneous wireless sensor network. In this technique cluster head election probability dynamically changes. The ETSEP is simulated using MATLAB and found that it performs better than Stable Election Protocol (SEP), Threshold Sensitive Stable Election protocol (TSEP) and Zonal Stable Election Protocol(ZSEP) in terms of stability and network lifetime. ETSEP builds more stable routing environment as compared to SEP, TSEP and ZSEP. Simulation results shows that our protocol performs better than SEP, TSEP and ZSEP.

Clustering, Data aggregation, Stable-aware routing protocol, Heterogeneous environment, Wireless sensor network

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