计算机工程

• 移动互联与通信技术 • 上一篇    下一篇

城市环境下跨层VANET路由协议研究

王桐,王鹏,柳冰忆   

  1. (哈尔滨工程大学 信息与通信工程学院,哈尔滨 150001)
  • 收稿日期:2016-10-28 出版日期:2017-11-15 发布日期:2017-11-15
  • 作者简介:王桐(1977—),男,副教授、博士,主研方向为车联网、移动社交网络、大数据;王鹏、柳冰忆,硕士。
  • 基金项目:

    国家自然科学基金(61102105);中央高校基本科研业务费专项资金(GK2080260138);黑龙江省博士后出站启动基金(LBH-Q12117);哈尔滨市科技局青年后备人才项目(2015RAQXJ008)。

Research on Cross-layer Routing Protocol in VANET Under Urban Environment

WANG Tong,WANG Peng,LIU Bingyi   

  1. (College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China)
  • Received:2016-10-28 Online:2017-11-15 Published:2017-11-15

摘要:

车载自组织网络(VANET)单一分层结构路由协议考虑因素较少,导致分组投递率低、端到端时延较高。为此,考虑车辆位置、速度、路口密度、无线链路质量、MAC层误帧率等影响因素,提出一种应用于城市环境的基于位置信息的VANET跨层路由协议(MCLPR)。设计路口车辆节点选择算法提取无线链路质量和MAC层误帧率的跨层信息,采用层次分析法计算各影响因素的权重值,确定最佳转发路径。仿真结果表明,与AODV,DSDV等路由协议相比,MCLPR路由协议具有较高的分组投递率及较低的端到端时延,保证了数据传输的可靠性与高效性,适用于网络密度与负载较大、车辆移动速度较快的城市环境。

关键词: 车载自组织网络, 位置信息, 跨层, 路由协议, 加权决策

Abstract:

Vehicular Ad Hoc Network(VANET) single-layer construction routing protocols consider less factor,causing low packet delivery ratio and high average end to end delay.Considering the influencing factors of vehicles position,speed,density of intersections,wireless link quality,and MAC layer frame error rate,this paper proposes Multi-factor Cross-layer Position-based Routing Protocol for VANET(MCLPR) for urban environment.An algorithm for Vehicle Selection at Intersections(AVSI) is designed to extract the cross-layer information of the wireless link quality and the MAC layer frame error rate.The weight value of each influencing factor is calculated by using the Analytic Hierarchy Process(AHP) to determine the best forwarding path.Simulation results show that,compared with routing protocols such as AODV and DSDV,MCLPR protocol has higher packet delivery ratio and lower end to end delay,ensuring the reliability and efficiency of data transmission.This routing protocol is suitable for urban environment with the large network load and density,fast moving speed.

Key words: Vehicular Ad Hoc Network(VANET), location information, cross-layer, routing protocol, weighted decision making

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