Distributed Cluster Head Election (DCHE) Scheme for Improving Lifetime of Heterogeneous Sensor Networks

Abstract

ABSTRACT Due to environmental characteristics, limited power and processing capabilities of wireless sensor networks, it is essential to find new techniques that improve the flow of information in the network. The cluster head election among the sensor nodes is an effective technique in wireless sensor networks to increase the network efficiency, scalability and lifetime. In this paper, we have proposed and evaluated a distributed cluster head election scheme for heterogeneous sensor networks. The election of cluster heads is based on different weighted probability. The cluster’s member nodes communicate with the elected cluster head and then cluster heads communicate the aggregated information to the base station via single hop communication. Adopting this approach, our simulation results demonstrate that the proposed scheme offer a much better performance than the existing protocols in terms of stability and network lifetime.