自适应移动IPv6切换时延优化的研究  

Study of Adaptive Handover Delay Optimization for Mobile IPv6

作　　者：任兰芳[1] 周华春[1] 秦雅娟[1] 张宏科[1] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044

出　　处：《北京交通大学学报》2006年第5期63-67,共5页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：国家自然科学基金资助项目(6057300160473001)

摘　　要：移动IPv6中,移动节点MN每次发生移动都要重新配置转交地址,同时还需要向其家乡代理以及所有的通信对端进行注册更新.这一系列操作导致了移动IPv6切换时延较大,对于实时性要求高的业务无法适用.针对这一问题,IETF提出了快速移动IPv6(FMIPv6)与层次移动IPv6(HMIPv6),分别从不同方面减少了切换时延.为了从整体上减少切换时延并实现分组路由优化,本文提出一种自适应移动IPv6切换时延优化方法,并经过数学理论推导分析,结果表明了这种自适应的切换方法比普通的快速、层次直接相结合的切换方法在切换时延方面存在很大的优越性.With Mobile IPv6, a mobile node always has to configure a new care of address whenever it moves to the new link. Also, it needs to inform CNs and the home agent （HA） of its new location at each moment. It brings long handover delay and especially it is not available for some real-time traffic. To resolve this problem, FMIPv6 and HMIPv6 have been proposed by IETF, which can separatdy reduce the handover delay in different ways. In this paper, a new adaptive optimization scheme, which integrates fast mobile IPv6 with hierarchical mobile IPv6, is proposed. Further, a mathematical performance analysis is developed to show the benefits of this scheme in the handover delay.

关 键 词：切换时延 快速移动IPV6 层次移动IPV6 自适应 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]