【作者】 刘高屹； 孙其博； 李静林； 刘志晗；

【Author】 Liu Gaoyi;Sun Qibo;Li Jinlin;Liu Zhihan;State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications;

【机构】 北京邮电大学网络与交换技术国家重点实验室；

【摘要】 在车辆自组织网络(VANET)中,构建聚簇在车辆跨组通信时有着非常重要的作用。但由于车辆的高速移动特性,车辆相对位置来回移动,网络拓扑结构的稳定性极易受到影响。本文基于实时车辆位置信息,以近邻传播聚类在VANET中的实现作为建立聚簇的基本方法,通过逐步分析,设计了一种双重门限控制方法,以解决车辆摆动问题,提高网络稳定性。基于交通仿真软件TransModeler,完成了建立聚簇过程的仿真实验,验证了本文提出的方法有助于该问题的解决,并测试在不同参数控制下对稳定性的影响。更多还原

【Abstract】 Clustering is of great importance in importance in Vehicular Ad-hoc NETwork,especially when vehicles communicate over groups.But due to the rapid moving feature of vehicle,the stability of the network topology can be easily influenced when the relative position of vehicles is changing.This paper uses AP method to cluster vehicles based on real-time spatiotemporal information,and then designdual-threshold control scheme to deal with the problem caused by wandering cars,so as to improve the stability of network.Finally,with the data produced by the simulation software TransModeler,we finish the simulation experiment,build the cluster,and confirm the dual-threshold scheme works on the situation,as well as test the influence of parameters with different values.更多还原