A Review on Leach: An Energy Efficient Protocol in Wireless Sensor Networks

Abstract

Wireless sensor networks (WSNs) are networks that comprise of many cheap, low power devices with sensing capability, limited processing and wireless communication capacity. Energy saving is the essential issue in designing efficient wireless sensor networks. The energy consumption of the sensor nodes determines the lifespan of the network. LEACH is a clustering technique that extends a network’s lifetime by minimizing the energy consumed and creating efficient energy distribution within the network. In this paper, we review Low Energy Adaptive Clustering Protocol (LEACH) which is a hierarchical protocol which provides solution to energy consumption issues of wireless sensor networks. We analyze several modifications made to LEACH to further curb the energy consumption.