关键词: 无线传感器网络, 能量高效, 非均匀分簇, 簇间路由树

Abstract: In order to address the issue of the energy consumption unbalance in wireless sensor networks, an energy-efficient uneven clustering algorithm is proposed. The new algorithm adopts cluster head election strategy based on the residual energy of nodes, and a cluster head employs the thought of unequal clustering to build a cluster. When building the inter-cluster routing tree, cluster heads take into consideration the adjacent cluster heads’ residual energy, the number of cluster members, the relative distance to itself and the relative distance to base station. Simulation results show the algorithm can effectively balance the network energy consumption and prolong the lifetime of the network.

Key words: wireless sensor networks, energy-efficient, uneven clustering, inter-cluster routing tree