EN-LEACH AN ENHANCED LEACH PROTOCOL TO HANDLE NODE-MOBILITY NON-UNIFORM ENERGY DISTRIBUTION AND LOCALIZATION IN SENSOR NETWORKS

Abstract

A wireless network consisting of a large number of small sensors with low-power transceivers can be an effective tool for gathering data in a variety of environments like civil and military applications. The data collected by each sensor is communicated through the network to a single processing centre called base station that uses all reported data to determine characteristics of the environment or detect an event. The communication or message passing process must be designed to conserve the limited energy resources of the sensors. Clustering sensors into groups, so that sensors communicate information only to local cluster-heads and then the cluster-heads communicate the aggregated information to the processing center, may save a lot of energy. LEACH is one such type of clustering based protocol that utilizes randomized rotation of local cluster-heads to evenly distribute the energy load among the sensors in the network. LEACH (Low-Energy Adaptive Clustering Hierarchy) uses localiz...