Author : Moumita Pramanick and Suvabrata Das

In Wireless Sensor Networks sensor nodes are used to sense the environment to collect important information. These tiny sensor nodes are generally battery operated and deployed randomly out of human reach. Thus efficient utilization of battery power is an important issue. In this paper, we proposed a new protocol: Energy Sensitive Routing Protocol (ESRP) for Wireless Sensor Networks, which introduces a new clustering technique in order to select cluster heads. In ESRP, we grouped the sensor nodes of a network into four classes based on their initial and residual energy. Node belongs to higher level energy class having greater probability to become a cluster head. This technique introduces a balanced and dynamic method where the cluster head election probability is more efficient. Simulation results prove that ESRP successfully achieves a long stability period, network lifetime and better average throughput than existing protocols like LEACH and SEP.

Keywords: Clustering, Networks Lifetime, Networks Stability, Throughput, Wireless Sensor Networks.

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.3 (June- 2014)