Abstract

The increasing advances in low-power electronics, sensor technology, and wireless communications, wireless sensor networks (WSNs) have developed into a platform for several important surveillance and control applications[1][2]. WSNs consists of hundreds and thousands of minute sensor nodes equipped with sensing, data processing, and communication units to perform distributed sensing tasks. Sensor nodes usually are operated on battery and hence they have to function without any attendance for a extensive period.. In most of the cases it’s impossible or very difficult alter or recharge the batteries in sensor nodes[4].In general, since they are powered by limited energy source, energy maintenance is commonly considered the most key challenge to guarantee the connectivity of the network and extend the operating period of the sensor nodes, especially when the deployment field is inaccessible and battery cannot be replaced[3].Here we will compare different routing protocols for the energy efficiency of a WSN.