A Review on Different Types of LEACH Protocol for Wireless Sensor Networks

Abstract

In wireless sensor networks (WSNs), due to the limitation of nodes’ energy, energy efficiency is an important point should be considered at the time of designing of protocols. Low Energy Adaptive Clustering Hierarchy (LEACH) is one of the elementary protocols in this class. As a quintessential representation of hierarchical routing protocols, LEACH Protocol plays an critical role. In addition to exaggerate the lifespan of cluster nodes, it is preferable to dissipated energy throughout the wireless sensor network. Hierarchical routing protocols are best known in regard to energy capability. The asset of LEACH protocol is that each node has the equal probability to be a cluster head, which makes the energy distribution of each node be balanced. In LEACH protocol, time is divided into many rounds, in each round, all the nodes contend to be cluster head according to a predefined criterion. In this paper, we study different LEACH protocol architectures and its functions.