移动IPv6切换时延优化新方法  

A Novel Optimization Handover Delay Method 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：《电信科学》2006年第3期51-54,共4页Telecommunications Science

基　　金：国家自然科学基金资助项目(No.60573001;No.60473001)

摘　　要：移动IPv6中,移动节点(MN)在不同子网间移动时,既不中断与通信对端(CN)的通信,也不用改变其本身的IP地址。但是当MN与其家乡代理(HA)之间相距较远时,移动IPv6切换时延较大,对于实时性要求较高的业务无法适用。本文分析比较了目前移动IPv6常用的切换时延优化方法,提出了一种自适应快速层次移动IPv6切换时延优化方法,减小了移动IPv6切换时延,提高了网络的性能。With mobile IPv6,a mobile node can roam in different networks neither disconnecting the communication with correspondent nodes, nor changing its IP address, but the handover delay is obviously increased when a mobile node is far away from its home agent. The handover delay will directly affect the performance of a network, especially for a real-time traffic. In this paper, the existing methods to decrease handover delay are analyzed and contrasted for mobile IPv6, and a new adaptive optimization scheme, which integrates fast mobile IPv6 with hierarchical mobile IPv6, is proposed. This scheme can decrease the handover delay and improve the performance of mobile IPv6 network.

关 键 词：切换时延 快速移动IPV6 层次移动IPV6 自适应 

分 类 号：TN915.04[电子电信—通信与信息系统] TN929.5[电子电信—信息与通信工程]