A modified LEACH protocol for wireless sensor networks

Author

Liu, Zhong ; Liu, ZhiKun ; Wen, Lin

Author_Institution

Naval Univ. of Eng., Wuhan, China

fYear

2011

fDate

19-21 Oct. 2011

Firstpage

766

Lastpage

769

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Computational Intelligence (IWACI), 2011 Fourth International Workshop on

Conference_Location

Wuhan

Print_ISBN

978-1-61284-374-2

Type

conf

DOI

10.1109/IWACI.2011.6160110

Filename

6160110