无线传感器网络最小能量簇群构造策略

尽可能延长无线传感器网络（WSNs）的生命周期是设计和部署网络所面临的最大挑战之一。由于节点配备的能量有限，采用分簇方式组织节点可以极大地降低节点与Sink节点通信的能耗。簇群成员节点和簇头的通信方式与簇群的拓扑结构决定整个簇群的能量消耗速度。文中分析了簇群节点采用Multi-hop通信方式时，节点通过中继节点与簇头通信时能量消耗的模型，然后在选择链路的最优跳数的基础上，提出建立最小能量中继链路的方法，实现通信能耗的最小化。对WSNs的设计和实施具有一定的指导意义。

Strategy of constructing minimum energy clusters in wireless sensor networks

How to prolong the lifetime of Wireless Sensor Networks(WSNs) is one of the biggest challenges in designing and deploying WSNs.Because of the node energy limit,cluster-based techniques can greatly reduce the energy consumption.The whole cluster energy consumption was decided by the communication pattern and topology of cluster.In this paper,we firstly analyzed the model of energy dissipation for transporting data between cluster head and cluster member nodes;secondly proposed a method to establish a minimum energy relay link based on optimal number of hops to minimize communication energy,which may be significant in the design and implementation of WSNs.