Reconfiguration of clusterheads for load balancing in wireless sensor networks

Authors:
Namhoon Kim;Jongman Heo;Hyung Seok Kim;Wook Hyun Kwon
Affiliations:
School of Electrical Engineering and Computer Sciences, Seoul National University, 599 Gwanangno, Gwanak-gu, Seoul, 151-742, Republic of Korea;School of Electrical Engineering and Computer Sciences, Seoul National University, 599 Gwanangno, Gwanak-gu, Seoul, 151-742, Republic of Korea;Department of Information and Communication Engineering, Sejong University, 98 Kunja-dong, Gwangjin-gu, Seoul, 143-747, Republic of Korea;School of Electrical Engineering and Computer Sciences, Seoul National University, 599 Gwanangno, Gwanak-gu, Seoul, 151-742, Republic of Korea
Venue:
Computer Communications
Year:
2008

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Abstract

This paper proposes an effective reconfiguration algorithm to increase the network lifetime by fairly distributing clusterheads (CHs) in wireless sensor networks. For a fair distribution of the CHs, the current CH chooses the next CH according to the two metrics - the number of general nodes (GNs) in a cluster and the number of CHs within the GN's transmission range. By fairly distributing the CHs, the number of GNs in the clusters can be balanced, which leads to fair energy consumption of the CHs. Simulation results show that the proposed algorithm increases the network lifetime.