An efficient hierarchical authentication scheme in mobile IPv6 networks

In order to cope with the critical issues causing by appending the authentication, authorization, accounting (AAA) function with the mobile IPv6 handover process, such as the longer delay of authentication and registration process, this paper describes a novel hierarchical authentication scheme, which makes its focus on minimizing the authentication latency in AAA processing. In this scheme, a hierarchical AAA architecture is proposed, in which the AAA servers are deployed on the mobility anchor point (MAP) and the root AAA server manages several leaf AAA servers. In addition, the simulation results show that the proposed mechanism reduces the handoff and authentication latency evidently compared to the previous simple traditional combination modeling.