基于相对位置多次转发的车载自组织网路由模型  

Routing model of multi-forwarding based on relative position in VANET

作　　者：黄继海[1] 王伟[1] 张文[1] 

机构地区：[1]中州大学信息工程学院,郑州450044

出　　处：《计算机应用研究》2014年第6期1799-1803,共5页Application Research of Computers

基　　金：河南省科技厅计划基金资助项目(122102210142)

摘　　要：车载自组网路由技术是近年来无线网络以及智能交通领域的研究热点之一。针对目前相关路由协议存在链路存活时间短、端到端时延大、路由开销大等问题,提出了一种基于相对位置多次转发的路由模型。该模型将车辆间相对位置进行分类,采用十字路口车辆优先和位置区分多次转发的方式实现控制包的寻路,进而推导不同类位置条件下链路存活时间的分布。采用AODV、DSR协议进行性能仿真实验,结果表明,该模型在链路存活时间、路由开销和吞吐量方面优于传统模型,而端到端时延性能有所下降,可满足车载自组织网路由性能需求。Routing technology in vehicular Ad hoc network （VANET） has the most remarkable aspects in the field of intelligent traffic in recent years.Aiming related to routing protocol with shorter link duration,larger end-to-end time delay,larger routing overhead et al.problems,this paper proposed a routing model of multi-forwarding based on relative position （MFRP）.In the model,it divided relative position into different type.It realized control data packet routing by crossroad having priority and multi-forwarding based on relative position method.It deduced probability distribution of link duration in condition of different relative position.It fulfilled simulation evaluation using AODV and DSR protocol.The result is that：performance parameter such as link duration,routing overhead and throughput of using MFRP is better than that using traditional routing model but end-to-end time delay is weaker.The performance requirement of general VANET would be met based on the routing model.

关 键 词：车载自组织网络 链路存活时间 相对位置 路由模型 端到端时延 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]