A Study Of Handover Technology Based On The Proxy Mobile IPv6

IETF in August2008proposed a network-based mobility protocol, which is called Proxy Mobile IPv6referred to as PMIPv6. Throughout the handover process in PMIPv6the mobile node involvement is not required. By the mobile access gateway (MAG) instead of the mobile node with the local mobile anchor node (LMA) for the PMIPv6registration and binding signal interaction. Aside PMIPv6handover technology advantages, in the current PMIPv6handover technology study of the following two shortcomings:The first point is when the MN handover occurs, it did not take into account the MAG load information, the MAG is the MN to be handovered. The second point is the existing PMIPv6handover scheme is not able to effective load balancing for the overloaded MAG. In order to improve these two shortcomings, the main work of this project are:(1) First analyzed the Proxy Mobile IPv6handover technology background and related agreements, and described in detail of the Proxy Mobile IPv6handover signal processes, and major functional entities in the Proxy Mobile IPv6protocol role.(2) For the mobile node that handover to the MAG public domain referred to as HMN, by using the proposed MAG load evaluation formula, a PMIPv6handover technology based on the MAG load information was proposed called APMIPv6handover technology.(3) The problem for the overloaded MAG, a PMIPv6temporary handover technology was proposed for the overload MAG to load balance. The MAG load is devided into different stages based on the MAG load evaluation formula,a specific handover strategy was proposed for the different MAG load stages.(4) By using the NS2network simulation tools and the C++programming language for the proposed program simulation, and analysis of the experimental results. APMIPv6simulation results show that, the mobile node HMN which handover to the MAG public domain, by using the APMIPv6improvement program handover technology, the HMN can choose a load relatively lighter MAG for PMIPv6registration and binding. MAG load balance experimental show that, by using the MAG load balance improve program handover strategy, not only can effective load balance for the overload MAG, but also to take the initiative to prevent the phenomenon of the overload MAG.