A Dynamic Authentication, Authorization, and Accounting (AAA) Resolution for Hierarchical Mobile IPv6 Network

Summary In order to provide seamless service in the mobile wireless networks, we need to minimize the disruption time including AAA cost needed to process a handoff of an ongoing session. There are several schemes focusing on this issue. However, they require a lot of signaling message exchanges, resulting in exposures of confidential information of the mobile nodes in the network. Moreover, to the best of our knowledge, no studies have been conducted in the area of AAA resolution protocol for HMIPv6 networks, the next generation platform for mobile networks. In this paper, we propose an efficient scheme called Dynamic AAA that eliminates these disadvantages. The proposed scheme can be applied to the HMIPv6 network for a fast AAA resolution. Simulation results show our scheme can significantly reduce the message overhead while maintaining almost the same handoff delay as other schemes.