A Novel Dynamic Hierarchy AAA Scheme for Interworking Authentication in Heterogeneous Networks

According to the interworking authentication trends, this paper has proposed a novel reference of interworking AAA architecture among 3GPP, WiMAX and WLANs. Moreover, based on the proposed architecture, a hierarchy AAA mobility management architecture is brought forward, as well as a dynamic reorganizing management scheme authentication domain. Finally, the simulation results show that the total cost of the authentication process is reduced drastically by using the hierarchy AAA architecture and dynamic reorganizing management scheme.