基于实时道路信息感知的VANET路由算法  

Segment information aware routing algorithm for VANETs

作　　者：陈潘航 周宏伟 CHEN Pan-hang;ZHOU hong-wei(College of Computer,Hangzhou Dianzi University,Hangzhou 310018,China;Tederic Machinery Limited Company,Hangzhou 310018,China)

机构地区：[1]杭州电子科技大学计算机学院,浙江杭州310018 [2]泰瑞机器股份有限公司,浙江杭州310018

出　　处：《计算机工程与设计》2020年第4期1041-1045,共5页Computer Engineering and Design

摘　　要：为降低车辆自组织网络VANET(vehicle ad hoc network)数据传输中的丢包率和数据延迟,提出一种基于分段机制改进的地理路由算法RSAR(real-time segment aware routing)。通过将道路状态量化为道路车辆密度、网络连通性、通信负载等参数进行路由规划,设计网络有效期机制,控制路由更新的频率。实验结果表明,RASR较公开的地理路由算法在VANET城市环境中有更好的表现。To reduce packet loss rate and delay of data transmission in vehicle ad hoc network(VANET),a real-time segment aware routing(RSAR)was presented,which based on segment routing.For routing planning,the network quality of the road was quantified by introducing the concepts of road density,connectivity.The verity period mechanism was designed for controlling the frequency of routing evaluation operations.The results of simulation experiments show that RASR has better perfor-mance in the urban VANET environment than the public geographic routing algorithm.

关 键 词：车辆自组网 路由算法 分段感知 网络状态 有效期机制 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]