中文摘要：

互联网工程任务组（IETF）所提出的分层移动IPv6（HMIPv6）,通过引入移动锚点（MAP）降低移动IPv6网络绑定更新所产生的信令开销,但HMIPv6未给出如何配置MAP及MAP域的具体方法.基于节点的移动跳数,提出一种动态选择MAP及配置MAP域的具体方法,以实现HMIPv6.在此基础上引入寻呼策略及其优化模型,对寻呼区域进行优化设计,提出了引入寻呼降低信令开销的一个条件.数值分析表明,通过设置适当的跳数阈值,可降低HMIPv6的信令开销.

英文摘要：

Hierarchical mobile IPv6（HMIPv6）,presented by the Internet Engineering Task Force（IETF）,is able to reduce signaling cost of mobile IPv6（MIPv6） by introducing mobility anchor point（MAP）.HMIPv6,however,it does not show how to set a MAP and its MAP domain.Based on the number of communication hops between a mobile node（MN） and the MAP,a new strategy for choosing a MAP and constructing its MAP domain is proposed to realize HMIPv6,in which the MAP and its domain are chosen dynamically.In addition,IP paging with a programming problem model,which optimizes MAP domains,i.e.,paging areas,is introduced.Moreover,the condition under which signaling cost is reduced by paging is given.Numeric analyses show that the cost of HMIPv6 can be reduced by setting a suitable threshold of the number of hops.