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改进的基于地理位置的可靠车载网络路由协议
引用本文:郝琨,金志刚,闫宁霄. 改进的基于地理位置的可靠车载网络路由协议[J]. 计算机工程与应用, 2010, 46(31): 102-105. DOI: 10.3778/j.issn.1002-8331.2010.31.028
作者姓名:郝琨  金志刚  闫宁霄
作者单位:1.天津城市建设学院 电子与信息工程系,天津 300384 2.天津大学 电子与信息工程学院,天津 300170 3.天津大学 计算机科学与技术学院,天津 300170
基金项目:国家高技术研究发展计划(863),天津自然科技基金,天津市高等学校科技发展基金计划项目
摘    要:提出了一种新的基于地理位置信息的车载网络路由协议——GDGP。GDGP是一种包转发机制,在进行包转发时将贪婪转发与方向转发相结合,通过两个独立的消息交互机制,更新各个节点上存储的目的节点的位置信息,以确保各个节点上记录的目的节点的位置信息的一致性,进而保证路由算法的可靠性。利用NS-2仿真平台,采取接近现实车辆运动情况的节点运动模式进行实验,和已有的GPSR路由协议进行比较。仿真结果表明,改进的路由协议在城市场景中有较好的性能。

关 键 词:车载自组织网络  贪婪的周边无状态路由  方向转发  
收稿时间:2010-03-25
修稿时间:2010-7-23 

Reliable routing protocol for vehicular Ad hoc networks based on geographic location
HAO Kun,JIN Zhi-gang,YAN Ning-xiao. Reliable routing protocol for vehicular Ad hoc networks based on geographic location[J]. Computer Engineering and Applications, 2010, 46(31): 102-105. DOI: 10.3778/j.issn.1002-8331.2010.31.028
Authors:HAO Kun  JIN Zhi-gang  YAN Ning-xiao
Affiliation:1.Electronic & Information Engineering Department,Tianjin Institute of Urban Construction,Tianjin 300384,China 2.School of Electronics and Information Engineering,Tianjin University,Tianjin 300170,China 3.School of Computer Science and Technology,Tianjin University,Tianjin 300170,China
Abstract:This paper proposes a routing protocol that incorporates greedy forwarding and directional forwarding based on geographical position called,GDGP.The position information of the destination nodes stored on every node could be updated through two independent message interactive mechanisms,which makes sure of the consistency of the position information recorded on every node.This further ensures the reliability of the routing algorithm.The performance of GPSR and GDGP is compared by using network simulator NS-2 with the actual node movement model.The simulation results show that the improved routing protocol has a better performance in city scenes.
Keywords:vehicular Ad hoc networks  greedy perimeter stateless routing  directional forward
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