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能量均衡的分簇路由协议一直是无线传感器网络(WSN)研究领域的一大热点,针对WSN中候选簇头的产生机制和簇半径的选取,提出一种自提名式非均匀分簇路由协议SNNUC(self-nominated non uniform clustering routing protocol).本协议将经典的LEACH协议运用到候选簇头的确定过程中,保证了所有节点在一定回合内都有可能成为候选簇头,同时在簇半径的选取过程中综合考虑了节点离基站的距离、剩余能量和节点周围的传感器密度对半径的影响.仿真实验表明SNNUC协议在能量均衡和延长网络寿命方面表现更佳.
Energy-balanced clustering routing protocol has always been a hot topic in the field of wireless sensor networks (WSN). In view of the generation mechanism and cluster radius selection of candidate cluster heads in WSN, a self-nominated heterogeneous clustering routing protocol SNNUC (self-nominated non uniform clustering routing protocol) .This protocol applies the classic LEACH protocol to the determination of candidate cluster heads, which ensures that all nodes may become candidate cluster heads in a certain round, Considering the distance between the node and the base station, the residual energy and the sensor density around the node, the simulation results show that the SNNUC protocol performs better in terms of energy balance and network lifetime.