一种改进LEACH的无线传感器路由协议仿真  

Simulation of an Improved LEACH Wireless Sensor Routing Protocol

作　　者：覃琪 谭松鹤 QIN Qi;TAN Songhe

机构地区：[1]河池学院计算机与信息工程学院,广西河池546300

出　　处：《科技创新与应用》2019年第8期11-13,16,共4页Technology Innovation and Application

基　　金：河池学院青年课题立项(编号:2013B-N004);广西壮族自治区中青年教师基础能力提升项目(编号:KY2016YB382)

摘　　要：文章在研究LEACH协议的基础上,提出了一种改进的层次型路由协议LEACH-Improved,改进的路由协议主要针对原有LEACH路由协议的不足,主要改进在两个方面:一是在簇头节点的选择上依据节点的剩余能量和节点与区域中心的距离,作为主要考虑因素,减少簇头分布的不合理情况,能有效地平衡节点的能量消耗;二是簇头节点采用多跳路由的方式向基站传输数据,也减少了部分簇头节点与基站的远距离的通信。最后通过OMNeT++仿真工具进行仿真实验,实验结果显示该算法相比原有的LEACH路由协议能有效地延长网络生命周期,降低网络能耗,实现网络负载平衡。Based on the study of LEACH protocol,an improved hierarchical routing protocol,LEACH-Improved,is proposed in this paper.The improved routing protocol mainly aims at the shortcomings of the original LEACH routing protocol.The main improvement is in two aspects:First,according to the residual energy of the node and the distance between the node and the regional center,as the main consideration factor,the unreasonable distribution of the cluster head can be reduced in the selection of the cluster head node,which can effectively balance the energy consumption of the nodes.Second,the cluster head nodes use multi-hop routing to transmit data to the base station,thereby can reduce the long-distance communication between some cluster head nodes and the base station.Finally,the simulation experiments are carried out by OMNeT++simulation tool.The experimental results show that the algorithm can effectively prolong the network life cycle,reduce network energy consumption and achieve network load balancing,compared with the original LEACH routing protocol.

关 键 词：无线传感器网络 LEACH 层次型路由协议 网络生命周期 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]