基于MIH的增强PMIPv6域间切换方法

An Enhanced Inter-PMIPv6 Domain Handover Approach Based on MIH

针对现有PMIPv6域间切换出现时延较大的问题,基于PMIPv6域内切换和域间切换以及介质独立切换的特性提出一种基于IEEE 802.21MIH标准的增强型PMIPv6域间切换方法。方法通过L2的方法提前告知移动节点切换目标网络的方法代替L3的网络扫描将切换决策和执行时间点提前,增强网络的无缝切换,性能分析结果表明该增强技术能够减少整个网络时延和丢包率,改善了网络性能。

To overcome the problem of handover latency between PMIPv6 domains, an enhanced inter-PMIPv6 handover method based on the IEEE802.21standard MIH is proposed according to the characteristics of intra-PMIPv6 domain and in- terPMIPv6 domain handover and also that of media independent handover. The method is that Layer 2 informs the mobile node＇s target network to network entity in advance. It takes the place of that of Layer 3 network scanning. Therefore, times of handover decision-making and execution are acted in advance and the performance of seamless handover is enhanced. Per- formance analysis results show that the enhanced technique can reduce the network delay and packet loss rate and improve network efficiency.