电信科学 ›› 2012, Vol. 28 ›› Issue (12): 62-67.doi: 10.3969/j.issn.1000-0801.2012.12.010

• 专题 • 上一篇    下一篇

路基设备辅助下的高速公路车辆信息方向性传输协议

韩江洪,杨帆,石雷,刘征宇   

  1. 合肥工业大学 合肥 230009
  • 发布日期:2017-02-07
  • 基金资助:
    国家电子信息产业发展基金项目

Direction Transmission Protocol of the Highway Traffic Information Assisted by Roadside-inFrastructure

Jianghong Han,Fan Yang,Lei Shi,Zhengyu Liu   

  1. School of Computer and Information,Hefei 230009,China
  • Published:2017-02-07

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摘要：

针对现有VANET网络广播传输协议信道利用率低，易造成信道拥塞等问题，提出在路基设备辅助下的改进协议。利用路基设备进行车辆分簇，将簇内车辆编号加入到发送数据帧头，每个车辆节点有选择地进行数据包接收与发送。仿真结果表明，改进协议可以有效地改善传输过程中的信道使用情况，有效信息传输率可提高20%。

关键词: VANET, 广播协议, 路基辅助, 顺序接收

Abstract:

Existing VANET network broadcast transmission protocols had low channel utilization,and could easily lead to channel congestion and other issues,so this paper proposed improved protocol assisted by roadside-infrastructure.It used roadside-infrastructure to cluster the vehicle.In the clustering,every sending data frame added the vehicle number to its head and each vehicle node received and transmitted the packets selectively.The results show that the improved protocol can effectively improve the transmission channel usage,and the effective information transfer rate can be increased 20%.

Key words: VANET, broadcast protocol, base-station assisted, receive in turn

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