Localized routing optimization for multi-access Mobile Nodes in PMIPv6

Proxy Mobile IPv6(PMIPv6) [1], as one of the most promising technologies for the next generation IP network, has attracted much attention in academia and industry. As an extension of PMIPv6, localized routing optimization can improve the performance of local communication greatly. However, recent study on localized routing optimizations only focus on single-access scenario, while the multi-access scenario has not been widely studied yet. In this paper, (1) we analyze the local communication scenarios for multi-access Mobile Node(MN), and propose two localized routing optimization schemes in the scenarios that MNs have interfaces attached to the same Mobile Access Gateway(MAG). (2) We then propose a localized routing selection algorithm to enable LMA to choose the best transmission path between MNs. (3) Besides, we also provide a performance analysis for the localized routing optimization schemes, and the results show that our scheme can greatly reduce the transmission cost and traffic load.