摘要
数据包传输的及时性,稳定性是衡量车载自组织网络(VANET)路由协议性能的重要指标。VANET网络中由于车辆的快速移动,网络分割现象严重,使得网络结构变化迅速,网络路由维护花销增大。本文提出了一种车辆在道路上行驶时,基于车辆在道路上的行驶路径,车辆的速度方向以及道路上车辆的密度等因素,选择一条快速稳定的网络层数据包传输路径的路由协议算法,该协议在DSR协议的基础上进行改进,仿真结果表明该协议具有较高的转发成功率、较少的路由路跳数和较低的数据传播延时。
How can timely and stable transmission of data packets from source to destination that are the most important performance of routing protocol in vehicular ad hoc network （VANET）. Because of the vehicle moves quickly, network segmentation phenomenon is serious in vehicular ad hoc network（ VANET）, that the network structure changes rapidly, network routing maintenance costs increase. A kind of rapid and stable network layer packet transmission routing protocol of VANET, based on the vehicle on running route, vehicle speed direction and the density of road vehicles is presented. This protocol is the improvement of DSR mechanism. The simulation resuits show that the presented protocol can achieve higher successful retransmission ratio, fewer routing hops and throughput and lower transmission delay.
出处
《微计算机应用》
2011年第11期28-34,共7页
Microcomputer Applications
