An Improvement of Network’s Lifetime Based on pLEACH Algorithm for WSN

Abstract

Applications of Wireless Sensor Network (WSN) have augmented in fields such as area monitoring, air pollution monitoring, environmental sensing etc. Due to power constraints of sensor in the network, sensor is not usually rechargeable or replaceable. Our key focus lies on improvement of network lifetime so that the battery needs not to be replaced soon. For achieving this aim, there is number of algorithm have been proposed to enhance the network’s lifetime and stability period of the WSN. LEACH (Low Energy Adaptive Clustering Hierarchy) is widely accepted cluster-based hierarchical routing protocol in Wireless Sensor Networks. The proposed protocol pLEACH (partition based LEACH) have added facility that it improve the lifetime of the network as compare to traditional LEACH algorithm. pLEACH algorithm firstly divided the network into optimal number of sectors, and then selects the node which have the highest residual energy as the cluster head of each sector with the help of centralized control of BS(Base Station). The simulation results and analysis shows that pLEACH could outperforms the conventional LEACH in terms of the network lifetime, stability period of the network and residual energy of network.