车载自组织网络RBVT-R协议的改进  

Improvement of RBVT-R Routing Protocol in VANET

作　　者：陈远龙[1,2] 葛剑飞[3] 刘南杰[1,2] 赵海涛[1,2] 

机构地区：[1]南京邮电大学通信与信息工程学院,南京210003 [2]南京邮电大学网络基因工程研究所,南京210003 [3]国家电网上海市电力公司信息通信公司,上海200122

出　　处：《电信科学》2013年第9期14-19,共6页Telecommunications Science

基　　金：国家重点基础研究发展计划("973"计划)基金资助项目(No.2013CB329005);国家自然科学基金资助项目(No.61302100;No.61201162);江苏省基础研究计划-重点研究专项基金资助项目(No.BK2011027;No.BK2012434);江苏省高校自然科学研究基金资助项目(No.12KJB510022;No.12KJB510020);南京邮电大学引进人才科研启动基金资助项目(No.NY211007;No.NY211036);中国博士后研究基金资助项目(No.2013M531391);教育部博士点基金资助项目(No.20123223120001);国家电网公司科技项目基金资助项目(No.52090F135015)

摘　　要：分析了基于地理位置的路由协议RBVT-R。针对RBVT-R协议在路由建立过程及分组转发过程中的缺陷,提出了一种RBVT-R协议的改进算法。该算法在路由建立过程中,根据自主获取的道路车辆密度改进了RBVT-R协议的洪泛机制;在分组转发过程中采用基于方向和位置预测的转发方法 ,解决了分组在同一路段重复传输的问题。仿真结果表明,提出的改进策略有效地提升了分组的交付率与端到端平均时延。The location-based routing protocol RBVT-R was analyzed. Aiming at the defects of RBVT-R routing protocol during the process of routing establishment and packet forwarding, an improved algorithm of RBVT-R was proposed. This method has improved the flooding mechanism by attaining road traffic density independently during the process of routing establishment. A packet forwarding scheme based on direction and location forecast was proposed during the process of packet forwarding, and had solved the problem of repeated transmission of packets in the same section. The simulation results show that the proposed improvement strategy can effectively enhance the average packet delivery ratio and end-to-end delay.

关 键 词：通信与信息系统 路由协议 RBVT-R 洪泛机制 分组转发 

分 类 号：TN915.04[电子电信—通信与信息系统]