ROUTING PROTOCOL FOR WIRELESS SENSOR NETWORKS

Abstract

Recently, Wireless Sensor Network (WSN) has received increased interest of research thanks to its many real-life applications. In WSNs, the sensor nodes sense different phenomenon from the encompassing area and forward data to the sink. Among the available routing protocols (RP), most of them used Low Energy Adaptive Clustering Hierarchy (LEACH) but did not consider the battery energy state while selecting the cluster head (CH). This paper proposed a multi-energy threshold-based routing protocol supported LEACH, which provides different energy thresholds of battery energy state, called multi-energy threshold LEACH (MET-LEACH). The MET-LEACH uses remaining battery energy state to pick the CHs. the primary node dies (FND), the half nodes die (HND), the last node dies (LND), packet reception ratio (PRR) and therefore the application level latency are the performance parameters to evaluate the performance of the proposed MET-LEACH protocol using the Castalia simulator. The simulation results show that MET-LEACH gives significant improvement in terms of FND (112% to 290%), HND (76% to 161%) and LND (76% to 185%) over the performance of LEACH.