LEACH-ENL: LEACH Protocol with Enhanced Network Lifetime in Wireless Sensor Network

ABSTRACT Research on Wireless Sensor Networks has recently received much attention as they offer an advantage of monitoring various kinds of environment by sensing physical phenomenon. Wireless sensor networks (WSNs) are networks of large number of tiny, battery powered sensor nodes having limited on-board storage, processing, and radio capabilities. Nodes sense and send their reports toward a processing center which is called “sink or base station.” Since the transmission and reception process consumes lots of energy as compare to data processing, Designing protocols and applications for such networks has to be energy aware in order to prolong the lifetime of the network. Energy saving is the crucial issue in designing the wireless sensor networks. In this paper, a modified algorithm for Low Energy Adaptive Clustering Hierarchy (LEACH) protocol is proposed known as “LEACH with Enhanced Network Lifetime protocol (LEACH-ENL) for clustered WSN” is aimed at prolonging the lifetime of the sensor networks by balancing the energy consumption of the sensor nodes. The proposed protocol adds feature to LEACH to reduce the consumption of the network resource in each round. Simulation results using MATLAB shows that the proposed LEACH-ENL protocol is better than LEACH in balancing node energy consumption, improving the efficiency of data transmission and prolonging the network life.