无线传感器网络中一种能量自适应的簇首选择机制

提出一种能量自适应的簇首选择机制．算法通过综合考虑候选节点的剩余能量级、通信能量损耗等参数来优化簇首的选择，从而有效地避免了低能量节点被选为簇首的可能性，进一步保证网络内节点能量负载的均衡性．仿真结果表明，改进的簇首选择机制能够很好地均衡网络能量损耗分布，有效延长近30%的网络生存时间．

Energy Adaptive Cluster-Head Selection for Wireless Sensor Networks

This paper proposes an energy-adaptive cluster-head selection algorithm, in which additional parameters including the remaining energy level of candidates and their energy cost for transmission are synthetically considered to optimize the process of cluster-head selection. The main idea of our algorithm is to avoid choosing nodes with lower residual energy as cluster-heads, thus to ensure balanced energy-usage among the nodes in the network. Preli- minary simulation results show that our protocol greatly improves the performance and efficiently prolongs the network lifetime by about 30%.