关键词: 无线传感器网络, 非均匀分簇, 能耗均衡, 冗余节点调度

Abstract: Aiming at the energy of nodes in Wireless Sensor Network（WSN） consume imbalance and energy wasted when a large number of redundant nodes work simultaneously in original clustering algorithm, an Energy-Efficient and Balanced Unequal Clustering Nodes Scheduling（EEBUC） algorithm is proposed and evaluated. In the cluster formation stage, the candidate cluster-head forms a heterogeneous competition scope, so that build different sizes of clusters and balance the energy consumption, in which considering many factors, such as the distance between candidate cluster head and the sink, the density of node factors, as well as the residual energy of node. At the same time, combining with the scheduling redundant nodes in the cluster, it can decrease the number of working nodes in the network, improving the energy utilization. Using OMNET++, the simulation results show that the EEBUC can save the network energy effectively, balance the node energy consumption and prolong the network lifetime 203% and 50% respectively than LEACH and EEUC.

Key words: Wireless Sensor Network （WSN）, unequal clustering, energy balance, redundant nodes scheduling