关键词: 无线传感器网络, 路由协议, 能量空洞, 非均匀分布, 生命周期

Abstract: Concerning the unbalanced energy and "hotspot" energy hole problems caused by uneven distributed node in Wireless Sensor Network （WSN） clustering routing protocols, an energybalanced uneven distributed node routing protocol was proposed. In the routing protocol, the three parameters, i.e., the "degree" of the node, the distance of nodes to Sink, and the ratio between the average residual energy of clusters nodes and the node itself residual energy, were considered when primary(deputy)cluster head was chosen，and each cluster communicated with Sink through routing tree. The simulation results show that the new protocol can reduce the cluster head rotation frequency when cluster is in "hotspot" or clusters destiny is high, delay the first nodes death time, and make the energy consumption more balanced and the network life cycle longer.

Key words: Wireless Sensor Network (WSN), routing protocol, energy hole, uneven distribution, life cycle