Title :
A modified LEACH protocol for wireless sensor networks
Author :
Liu, Zhong ; Liu, ZhiKun ; Wen, Lin
Author_Institution :
Naval Univ. of Eng., Wuhan, China
Abstract :
In order to reduce the energy consumption of nodes and prolong the lifetime of wireless sensor networks (WSN), a clustering protocol based on Chaos-PSO is proposed. The protocol improves the cluster-head selection mechanism, it considers the residual energy of nodes, distance to sink node and range of clusters. It optimizes cluster-head selection by Chaos-PSO. Then the other nodes decide whether join the cluster or not by comparing the signal strength of advertisement message with a predefined threshold, and the range of cluster is restricted. The simulation results show that, compared with LEACH, the new protocol can efficiently save energy and prolong the lifetime of WSN.
Keywords :
chaos; particle swarm optimisation; protocols; wireless sensor networks; Chaos-PSO; LEACH protocol; WSN; advertisement message; cluster-head selection mechanism; clustering protocol; energy consumption reduction; low-energy adaptive clustering hierarchy; node residual energy; sink node; wireless sensor networks; Ad hoc networks; Chaotic communication; Energy consumption; Mathematical model; Protocols; Wireless communication; Wireless sensor networks;
Conference_Titel :
Advanced Computational Intelligence (IWACI), 2011 Fourth International Workshop on
Conference_Location :
Wuhan
Print_ISBN :
978-1-61284-374-2
DOI :
10.1109/IWACI.2011.6160110
