在无线传感器网络中能耗是必须考虑的一个重要因素,由于无法对节点的能量进行再输送,应尽可能地减少系统能量的开销、延长整个网络的生存时间。文中对无线传感器网络的能耗与最优簇首节点数量之间的关系进行了理论分析与研究,得出的结论对无线传感器网络规划、设计有一定的指导作用。 Energy consumption in wireless sensor networks is an important factor that must be considered. Since the energy of the nodes can not be re-delivered, the system energy consumption should be reduced as much as possible to prolong the lifetime of the entire network. In this paper, the relationship between the energy consumption of WSN and the number of nodes in the optimal cluster is theoretically analyzed and studied. The conclusions drawn are helpful to the planning and design of wireless sensor network.