current research

This paper first reviewed the current research status of some relative technologies, and analized the principle of client-based and network-based mobility management, as well as global mobility and local mobility application, then briefly introduced the basic principle of Diameter protocol. Based on these researchs, this paper further designed a client-based and network-based convergence structure, including separating structure solution and integrating structure solution, and finally selected intergrating structure solution through analysis of data transmission performance of the two solutions. Upon completion of the convergence network structure design, this paper proposed a protocol selection strategy based on path cost and handover frequency, and defined the format of protocol data and operating procedure in each relative network entity.Based on the design of convergence structure and protocol selection strategy, this paper implemented the softwares in Linux platform for each function entity, mainly focus on MAG decision-making software and AAA server software In this implementation, decision-making software in MAG implemented functions such as MN association detection, data acquisition from AAA server, measurement of path cost, protocol selection and inter-process communication with PMIPv6 software.