无线传感器网络中基于能量比的簇首选择机制

Cluster-head Selection Mechanism Based on Energy Ratio in Wireless Sensor Networks

针对无线传感器网络中节点的不同能量损耗度,提出了基于能量代价的能量比簇首选择机制;该机制首先将普通节点视为簇首节点,计算节点的必要能量损耗值和节点当前的能量剩余值;并结合本文提出的能量比概念及计算公式,将上述能量相关值转化为可衡量传感器节点的能量损耗快慢度的簇选因子量值.仿真实验表明,该算法实现了更优的簇头选择,能有效延长网络生命周期.

Regarding energy consumption for different degrees of nodes in a wireless sensor network , it proposed the energy cluster head selection mechanism , based on the cost of energy .In this mechanism , the first common node was seen as the cluster head node .Nodes, necessary node energy consumption , and the current energy surplus value were computed . With the proposed concepts and formulas , the above energy-related value was converted into the value of energy loss speed of the selected clusters at measur-able sensor nodes .Simulation results show that the algorithm has a better cluster head selection , and it can effectively extend the network life cycle .