Energy aware routing protocol for wireless sensor networks

ABSTRACT: Energy conservation has a main priority in all technology and engineering fields. During the rise of wireless sensor networks (WSNs) field applications and the critical situation of energy consumption, the optimization of energy dispatch becomes a critical and important field of research. LEACH (Low Energy Adaptive Clustering Hierarchy) is one of the most popular routing protocols in WSNs. However, in LEACH nodes energy are drained quickly and it decreases the network lifespan due to cluster heads that are selected randomly without taking into consideration the residual energy and position of nodes. The goal of this thesis is to introduce a novel routing algorithm named D-LEACH (Decentralized LEACH) to enhance network lifetime by selecting optimum number of cluster heads according to their residual energy and position. This is achieved by decreasing the amount of communication which is needed for selecting cluster heads. The simulation results indicate that the proposed scheme can prolong network’s lifespan and also increase the average residual energy of nodes 150%. Keywords: Wireless Sensors Networks, Sensors Clustering, LEACH. …………………………………………………………………………………………………………………………………………………………………………………………………………