Optimized Integrated Registration Procedure of Mobile IP and SIP with AAA Operations

In order to meet the requirements of complicated mobility management in future mobility applications, multi-layers and multi-protocols mobility management schemes should be used. Mobile IP and SIP are protocols used as mobility management protocol in network layer and application layer, respectively. AAA is the foundation of network application deployment. When performing AAA operations in mobile IP and SIP independently, it is very inefficient. We propose an optimized scheme, named OIRPMSA. In this scheme, through cooperation of mobile IP and SIP when performing AAA operations, times of round trips are reduced. Analysis indicates that this scheme can reduce signaling cost, time delay and improve system performance significantly

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