ENERGY-EFFICIENT CLUSTERING PROTOCOL FOR WSN BASED ON IMPROVED PSO ABSTRACT

Abstract

Aiming at the problem that how to cluster all nodes with the optimization way, which can decrease the energy consumption of nodes, and balance the consumption of the entire network, a new centralized clustering protocol based on Particle Swarm Optimization(PSO) algorithm is proposed, which is compact, energy-aware and base-distance-aware. The definition of the fitness function of particle is based on three factors: the Euclidean distance between nodes and their associated cluster heads, the energy of cluster heads and the distance of cluster heads to base station. Simulation results demonstrate that the protocol can efficiently decrease the dead speed of nodes and prolong the network lifetime.
Keywords: LEACH-C, PSO, WSN