【摘要】 移动IPv6切换依然存在切换延迟大、数据包易丢失的问题·切换时延由移动检测时延和注册时延组成,而移动检测时延在其中占主要部分·于是提出一种基于移动IPv6的自适应主动预测邻居单播的切换机制,采用自适应主动预测算法,根据移动节点运动情况和网络状况等进行综合预测,并通过反馈结果对算法进行动态调整,方案中充分考虑了乒乓效应等特殊情况;还结合层次移动管理方法,减小注册时延,同时采用预测邻居单播,减轻网络负担,实现了快速平滑的切换·更多还原

【Abstract】 There are still large handoff latency and the packet being easier to lose on mob ile IPv6 handoff. The handoff latency is composed by movement latency and regis ter latency, and the handoff latency is its main section. In this paper, an ad aptive initiative predictive neighbor unicast handoff scheme is presented. The adaptive initiative predictive algorism is adopted, predictions are intellective ly carried out according to the network conditions and the movement of the mobile host, and the algorithm adjusts itself corresponding to the feedbacks. The s pecial situation of Pingpang (table-tennis) effect is also fully considered. Besides, combined with the hierarchical mobility management scheme, the latency of registration is also reduced, and by adopting the predictive neighbor unicast, the network loads are reduced. Finally, a fast and smooth handoff is achieved .更多还原