PMIPv6本地化路由机制研究

Research on the localized routing mechanism for the PMIPv6

PMIPv6是一种支持基于网络的本地化移动性管理的解决方案,然而它要求所有通信流量都通过本地移动锚点,导致传输效率降低.提出了一种新的PMIPv6本地化路由优化方案,针对不同实际应用场景的拓扑结构,动态地选择适合的本地化路由发起方,合理地制定本地化路由判决规则,同时对信令传输方式进行了优化以减少协议开销.理论分析与仿真结果均表明,这个方案与目前主流的PMIPv6本地化路由方法相比,不但明显地缩短了本地化路由响应时间,而且弥补了PMIPv6本地化路由在某些场景中未提供可用解决方案的缺陷.

The Proxy Mobile IPv6（PMIPv6） is a network based mobility management protocol,but the transmission efficiency is affected by the requirement that all the data packets traverse the Local Mobility Anchor.In this paper,a novel localized routing scheme is proposed.Based on various topology infrastructures in the actual applied scenario,the appropriate LR-initiator is selected dynamically and the decision rules of LR are made reasonably.In addition,the signaling transmission is optimized in order to reduce the protocol overhead.Theoretical analysis and simulation results indicate that the proposed scheme can obviously shorten the response time of LR compared with a classical protocol called LRP,and overcome the defect that the solution of LR cannot be provided in some special scenario when using LRP.