Adaptive Binding Update Schemes in NEMO

Abstract

When a mobile network moves from one place to another, it changes the reachability of the mobile network in the Internet topology. Network Mobility (NEMO) is concerned with the management of this movement of the mobile network. It is necessary to exchange binding update messages frequently for seamless mobility. However, it incurs both the increase of network overhead and poor usage of mobile router energy efficiency. Our main concerns focus on binding update message management to support efficient network mobility. Thus, this paper proposes an adaptive binding lifetime according to the duration for which mobile router resides in each network under the condition that the mobility type of the mobile router is known in advance. By introducing this algorithm, the number of binding update messages for refreshing the binding could be reduced compared to the default behavior of NEMO, which is defined in RFC3963. Simulation results are shown to prove the effectiveness of the proposed schemes.

This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, Basic Research Promotion Fund) (KRF-2006-311-B00775).