异构网络环境中基于能量时间竞争机制的网络分簇算法研究

Network Clustering Algorithm Based on Energy Time Competition Mechanism in Heterogeneous Network Environment

无线传感器网络的使用寿命主要是由能量来决定的,节点能量消耗可以通过节点分簇算法来进一步降低。针对无线传感器网络分簇中存在的"能量空洞"问题,本文提出一种新的降低节点能量损耗的节点分簇算法——LVUC算法。该算法综合考虑了网络中节点的能量消耗的异构性以及各个节点计算能力的异构性,依据节点的剩余能量和预测的成簇节点的能量损耗,选取剩余能量相对较高的节点为簇头节点。仿真实验结果表明,该算法能有效地均衡节点的能量消耗,从而延长网络的生命周期。

The lifetime of wireless sensor networks is determined by the energy,the energy consumption of nodes can be further reduced by the node clustering algorithm.In view of the energy hole problem in wireless sensor networks,this paper proposes a new node clustering algorithm,LVUC algorithm,which reduces the energy consumption of nodes.The algorithm considering the energy consumption of the nodes in the network is heterogeneous and each node calculation ability heterogeneity.According to the energy consumption of the cluster nodes of the node residual energy and prediction,residual energy relatively higher node as cluster head node selection.Simulation results show that the proposed algorithm can effectively balance the energy consumption of nodes and prolong the lifetime of network.