面向PEGASIS协议的节点分簇集群优化方法研究

A Study of Nodes Cluster Optimization Method for PEGASIS

为了提高无线传感器网络的生存时间、连通性和增加网络中节点的活跃数,提出一种改进的节点分簇集群方案.采用分区域的聚类算法进行成链,根据链头结点的能量在此链总能量的占比决定链头节点的重选频率,并考虑了节点的剩余能量等条件.仿真结果表明:改进的协议在平衡能量消耗和延长网络生命周期方面比PEGASIS具有更好的性能.

In order to improve the survival time,connectivity of wireless sensor networks increase the activity of nodes in the network,we propose an improved node cluster scheme,which uses the sub-regional clustering algorithm to form a chain.According to the proportion of the energy of the nodes in the chain to the total energy of the chain,the re-selection frequency of the nodes in the chain is determined,and the remaining energy of the nodes is taken into account.The simulation results show that the improved protocol has better performance than PEGASIS in balancing energy consumption and extending the network life cycle.