Connection tree based micro-mobility management for IP-centric mobile networks
Connection tree based micro-mobility management for IP-centric mobile networks
复制标题
针对以 IP 为中心的移动网络的基于连接树的微移动管理
DOI：
10.1109/icc.2002.997444
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
A. Acampora
中科院分区：
文献类型：
--
作者：
Q. Gao;A. Acampora
IP和传统电信网络(有线和无线)正在不断融合。为了便于快速切换和实时位置跟踪，并减少基于IP的移动网络中的位置更新开销，需要分层的IP移动性管理方案，即用于宏观移动性(移动域间)的移动IP和用于移动域内的微移动性的蜂窝网络优化方案。通过引入虚拟组播、虚拟发送器/接收器、空过滤器规范和休眠预留等新概念，将无线ATM网络中最初提出的连接树概念应用于有服务质量要求的移动用户的IP微移动性管理。我们的方案通过本地化大部分与位置更新相关的操作并预先建立到/来自多个基站的连接来实现快速而平滑的切换。它与RSVP等IP服务质量机制无缝集成，能够在切换过程中实现快速预留恢复，并自然支持软切换。
There is on-going convergence of IP and traditional telecommunication networks (both wired and wireless). To facilitate fast handoff and real-time location tracking, and reduce the location update overhead in IP based mobile networks, hierarchical IP mobility management schemes, i.e., Mobile IP for macro-mobility (inter mobile domains) and cellular-network-optimized schemes for micromobility within mobile domains, are needed. We apply the connection tree concept that was originally proposed for wireless ATM networks to IP micro-mobility management for mobile users with QoS requirements by using such new concepts as virtual multicast, virtual sender/receiver, null filter specification and dormant reservation. Our scheme enables fast and smooth handoff by localizing most of the location update related operation and pre-establishing connections to/from multiple base stations. It integrates seamlessly with such IP QoS mechanisms as RSVP, enables quick reservation restoration during handoff, and naturally supports soft handoff.