计算机应用 ›› 2013, Vol. 33 ›› Issue (10): 2707-2710.

• 网络与通信 • 上一篇    下一篇

基于Delaunay三角剖分的FMIPv6快速切换机制

李振军1,2,柳兴1   

  1. 1. 北京邮电大学 信息与通信工程学院,北京 100876
    2. 湖南广播电视大学 理工部,长沙 410004
  • 收稿日期:2013-03-21 修回日期:2013-04-21 出版日期:2013-10-01 发布日期:2013-11-01
  • 通讯作者: 李振军
  • 作者简介:李振军(1975-),男,湖南郴州人,副教授,硕士,主要研究方向:移动互联网;柳兴(1984-),男,湖南岳阳人,博士研究生,主要研究方向:移动互联网。
  • 基金资助:
    国家自然科学基金资助项目;2013年度湖南省教育厅科学研究项目

Fast handover mechanism based on Delaunay triangulation for FMIPv6

LI Zhenjun1,2,LIU Xing1   

  1. 1. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
    2. Science and Technology Department, Hunan Radio and Television University, Changsha Hunan 410004, China;
  • Received:2013-03-21 Revised:2013-04-21 Online:2013-11-01 Published:2013-10-01
  • Contact: LI Zhenjun

摘要: 针对快速移动IPv6(FMIPv6)中预测新接入路由器(NAR) 出错时的丢包问题,提出了一种基于Delaunay三角剖分的快速切换机制(TFMIPv6)。该机制通过Delaunay三角剖分算法将网络分割成虚拟的三角拓扑结构,在相邻的接入路由器间建立隧道,通过目标接入节点候选表来协助移动节点快速重构两个新的转交地址,并将切换过程中到达的包缓存在两个可能的NAR中。仿真结果表明,TFMIPv6能获得比FMIPv6更小的切换延时及丢包率。

关键词: 快速移动IPv6, 隧道, 切换延时, 丢包率

Abstract: To solve the packet loss problem caused by inaccurate prediction of New Access Router (NAR) in the Fast Handover for mobile IPv6 (FMIPv6), this paper proposed a triangulationbased fast handoff mechanism (TFMIPv6). In TFMIPv6, a triangulation algorithm was used to split the network into virtual triangle topology, and the tunnel was established among adjacent access routers. The candidate target Access Points (AP) were selected to quickly recalculate the new relay addresses for the mobile nodes, and packets were buffered in two potential NARs during handover. The experimental results illustrate that TFMIPv6 protocol achieves lower handoff latency and packet loss rate compared with FMIPv6.

Key words: Fast Handovers for mobile IPv6 (FMIPv6), tunnel, handover latency, packet loss rate

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