WSNs中一种基于阈值修正的多跳分簇路由算法  

A Multi-Hop Clustering Routing Algorithm Based on Threshold Correction in WSNs

作　　者：徐会彬 XU Huibin(School of information Engineering,Huzhou university,Huzhou Zhejiang 313000,China;Zhejiang Province Key Laboratory of Smart Management and Application of Modern Agricultural Resources,Huzhou Zhejiang 313000,China)

机构地区：[1]湖州师范学院信息工程学院,浙江湖州313000 [2]浙江省现代农业资源智慧管理与应用研究重点实验室,浙江湖州313000

出　　处：《传感技术学报》2021年第3期407-412,共6页Chinese Journal of Sensors and Actuators

基　　金：2021年度浙江省软科学研究计划项目(2021C35129)。

摘　　要：针对无线传感网络(Wireless Sensor Networks,WSNs)中节点能耗不均及能量利用率低等问题,提出基于阈值修正的多跳分簇路由(Threshold Correction-based Multi-hop Clustering Routing,TCCR)。TCCR路由先依据网络区域面积、汇聚节点位置以及节点通信半径,计算分簇的数量。再根据节点能量因子、距离因子和节点密度因子构建簇头选择阈值函数。节点依据阈值函数竞选簇头。在簇间多跳路由阶段,利用簇头能量和相对距离计算簇头的适度因子,并选择具有最大适度因子的簇头构建簇间路由。仿真结果表明,相比于传统的LEACH路由,TCCR路由有效地推迟了死亡节点的出现,提升了数据传输效率。In order to solve the problem of uneven energy consumption and low energy efficiency of nodes in wireless networks,Threshold Correction-based Multi-hop Clustering Routing(TCCR)is proposed in this paper.In TCCR,the number of clusters is calculated based on network area,position of Sink node and communication radius of nodes.The cluster head election threshold function was designed according to the residual energy factor,distance factor and node-density factor.Nodes compete with its neighbor nodes for cluster head.In the inter-cluster multi-hop routing stage,the moderation factor of cluster head is computed according to residual energy of cluster head and relative distance,and cluster head with largest moderation factor is selected to construct inter-cluster routing.The simulation results show that compared with the traditional LEACH protocol,the death node of TCCR protocol was effectively delayed and the data transmission efficiency was improved.

关 键 词：无线传感网络 分簇 簇头选择阈值函数 适度因子 簇间多跳路由 

分 类 号：TN929.5[电子电信—通信与信息系统]