计算机与现代化 ›› 2016, Vol. 251 ›› Issue (07): 98-102.doi: 10.3969/j.issn.1006-2475.2016.07.020

• 网络与通信 • 上一篇    下一篇

 一种适用于城市车载网的改进的AODV协议

  

  1. 南京航空航天大学计算机科学与技术学院,江苏南京210016
  • 收稿日期:2015-12-11 出版日期:2016-07-21 发布日期:2016-07-22
  • 作者简介: 曹文君(1986-),女,贵州遵义人,南京航空航天大学计算机科学与技术学院硕士研究生,研究方向:物联网; 薛善良,副教授,硕士生导师。

 An Improved AODV Routing Protocol for Urban Vehicular Ad Hoc Networks

  1. College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2015-12-11 Online:2016-07-21 Published:2016-07-22

摘要:  为了增强城市车载网的链路稳定性,提出一种基于链路生存时间的改进的AODV(Enhanced Routing Protocol on Ad Hoc On-demand Distance Vector with Speed Variance,SV_AODV)路由协议。SV_AODV要求源节点转发路由请求至目的节点时包含节点的移动速度和方向,目的节点通过搜集路径上节点的速度信息得出每条链路的速度方差,并反馈给源节点,使其能够选择链路较稳定的传输路径。网络模拟软件仿真实验表明,改进的SV_AODV协议在节点快速移动的情况下能够减少数据包的丢失,缩短端到端的时延,更适用于城市车载网。

关键词:  , 城市车载网, AODV路由协议, 路由算法, 链路稳定性, 速度方差

Abstract:  To enhance the link stability of urban vehicular Ad Hoc networks, this paper proposes an enhanced routing protocol on Ad Hoc on-demand distance vector with speed variance (SV_AODV). In SV_AODV, the nodes forward requests to the destination node with their velocities, the destination node collects velocity variance of the path and feedbacks it to the source for selecting the route. The simulation results from the Network Simulator Versi on 2 prove that SV_AODV can reduce the loss of data packets and shorten the end-to-end delay in the case of fast moving of nodes, it can be applied to urban vehicular Ad Hoc networks.

Key words:  urban VANET, AODV routing protocol, routing algorithm, link stability, speed variance