DNA: Diameter NEMO Applications Based on Binding Update Integration

NEtwork MObility (NEMO) technology leads to manage not only host mobility but also the mobility of an entire network. For practical usage, mobile users should however be authenticated by their service provider when accessing foreign networks. AAA for NEMO (AFN) [8] provides a solution to perform the AAA mechanism, based on NEMO Basic Support (NBS). When we consider the AAA mechanism, the binding update procedure (BU) would also be performed when Mobile Router (MR) does frequent handoffs between Mobile Networks. These two procedures (Authentication and BU) result in additional overhead if they are performed separately. Therefore, both are considered for formulating an integration scheme. An efficient solution is proposed by integrating the binding update message into the Diameter protocol, in order to reduce traffic overhead and routing delay. The proposed scheme is analyzed in terms of measurement factors of transmission time and processing time. As a result, the proposed scheme outperforms AFN up to 8∼35% in terms of routing delay.