北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2009, Vol. 32 ›› Issue (5): 56-60.doi: 10.13190/jbupt.200905.56.liyzh

• 论文 • 上一篇    下一篇

地理和交通信息感知的车载Ad Hoc路由

李元振;廖建新; 李彤红; 朱晓民   

  1. (1.北京邮电大学 网络与交换技术国家重点实验室, 北京 100876; 2. 马德里科技大学 计算机系, 西班牙 马德里 28660)
  • 收稿日期:2009-03-07 修回日期:2009-08-10 出版日期:2009-10-28 发布日期:2009-10-28
  • 通讯作者: 李元振

Geography and Traffic Based Routing for Vehicular Ad Hoc Networks in City Scenarios

LI Yuanzhen,LIAO Jianxin,LI Tonghong,ZHU Xiaomin   

  1. (1.State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China; 
    2. Department of Computer Science, Technical University of Madrid, Madrid Spain 28660, Spain)
  • Received:2009-03-07 Revised:2009-08-10 Online:2009-10-28 Published:2009-10-28
  • Contact: LI Yuan-Zhen

摘要:

为提高数据包投递率和降低时延,提出了一种基于地理和交通信息的车载Ad Hoc网络(VANET
)路由算法. 该算法利用实时的道路交通信息和车辆移动位置预测进行数据转发,并采取暂存转发策略,同时能处理目的节点移动情况. 仿真结果表明,该算法比贪婪的周边无状态路由(GPSR)算法具有更高的数据包投递率和更低的时延.

关键词: 车载Ad Hoc, 路由算法, 位置预测

Abstract:

A position and traffic based routing protocol for vehicular Ad Hoc networks (VANETs) in city is proposed with using real time traffic information and mobility prediction to forward data with the idea of “carry and forward”. The protocol can work well where the destination node is moving. Simulation result shows that, compared with greedy perimeter stateless routing (GPSR), it achieves good delivery rate improvement and lower delay.

Key words: vehicular Ad Hoc, routing algorithm, position prediction