ENERGY EFFICIENT CLUSTER HEAD SELECTION IN WSN –A SURVEY

Abstract

Applications for Wireless Sensor Networks (WSN) have increased dramatically in the earlier decade. Clustering is a mechanism employed in WSNs to increase the network's lifespan and offer more effective operational processes. The process of creating many clusters within a sensor network's sensing field is known as clustering. Every cluster selects a leader, also stated as a cluster head. The network administrator may pre-assign a cluster head or the sensor nodes within the cluster may decide the cluster head. In the network, optimized clustering can save a great deal of energy. The tiny sensor node in a WSN utilizes a tiny, energy-constrained battery. There is no way to change or replenish the battery. Thus, WSN's energy-efficient operation is the crucial element. WSN strategies have been proposed by numerous researchers in an effort to maximize WSN energy and lifespan. This document reviews a number of widely used WSN protocols, primarily LEACH, HEED, SEP, DEEC, DDEEC, EESAA, IAATPC and EESCA.