基于层次位置管理的HIP移动性支持机制

Mobility Support in HIP Based on Hierarchical Location Management

针对现有HIP机制不支持节点微移动的问题,提出了基于层次位置管理的HIP移动性支持机制。在该机制中,网络被分成多个区域,每个区域都有一个本地集合服务点管理区域中节点的身份标识及其IP地址之间的映射关系。当节点在同一个区域中移动时,只需要在该区域的本地集合服务点上进行位置更新。仿真表明,和现有的HIP机制相比,基于层次位置管理的HIP移动性支持机制具有较低的信令开销,可以较好的支持节点的微移动。

The existed mobility support scheme in HIP does not support micro-mobility. A new mobility support scheme in HIP based on hierarchical location management was proposed, The Internet is separated into some regions. There is a LRVS （Local Rendezvous Server） that manages the nodes＇ HIT and IP addresses in each region, When it moves in the same region, the node has to update its 1P address in the LRVS. Analytical results show that the new scheme outperforms the existed mobility scheme in terms of reducing the overall signaling cost. It supports micro-mobility well.