Abstract: The existing mobile IP handoff scheme has some problems such as more handoff latency, easy to lose packets and poor security. From the point of the motion detection, the key problem of mobile IP handoff, this paper presents and implements an efficient mobile IP handoff scheme which can initiatively predict neighbor mobile IP. It adopts the adaptive initiative predictive algorithm, can predict intelligently according to the network conditions and the movement of the mobile host, and thus a fast and smooth handoff is achieved. Simulation results show that it could effectively solve the above problems, reduce greatly the handoff latency and the counters of handoff, guarantee the packet’s arriving in time, increase the handoff performance of the system, and maintain a better QoS.

Key words: Mobile IP, Adaptive initiative prediction, Handoff scheme, Hierarchical mobility management

摘要： 现有的移动IP切换机制存在切换时延大，分组易丢失，安全性差等问题。该文从移动IP切换的关键问题移动检测出发，提出并实现了一种有效的自适应主动预测邻居移动IP切换机制，运用主动自适应预测算法，根据网络和移动主机的运动状态动态智能地预测移动主机的切换，实现快速平滑切换。仿真结果表明，该策略与现有机制相比，极大地减少了切换时延和切换次数，保证分组按时到达，提高了系统的切换性能，保证了系统的QoS。

关键词: 移动IP, 自适应主动预测, 切换机制, 层次移动管理

CLC Number: 

• TP393