Balancing energy consumption in clustered wireless sensor networks

Tony Ducrocq 1 Michaël Hauspie 2, 3 Nathalie Mitton 1
3 2XS - Extra Small Extra Safe
CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189
Abstract : Clustering in wireless sensor networks is an efficient way to structure and organize the network. It aims at identifying a subset of nodes within the network and bind it to a leader (i.e. cluster-head). The leader becomes in charge of specific additional tasks like gathering data from all nodes in its cluster and sending them by using a longer range communication to a sink. As a consequence, a cluster-head exhausts its battery more quickly than regular nodes. In this paper, we present four variants of BLAC, a novel Battery-Level Aware Clustering family of schemes. BLAC considers the battery-level combined with another metric to elect the cluster-head . The cluster-head role is taken alternately by each node to balance energy consumption. Due to the local nature of the algorithms, keeping the network stable is easier. BLAC aims at maximizing the time with all nodes alive to satisfy application requirements. Simulation results show that BLAC improves the full network lifetime three times more than traditional clustering schemes by balancing energy consumption over nodes and still delivering high data ratio.
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ISRN Sensor Networks, Hindawi, 2013
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Tony Ducrocq, Michaël Hauspie, Nathalie Mitton. Balancing energy consumption in clustered wireless sensor networks. ISRN Sensor Networks, Hindawi, 2013. 〈hal-00863123〉

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