An efficient mobility management scheme in hierarchical mobile IPv6

In the mobile Internet, the wireless link has far less available bandwidth resources and limited scalability compared to the wired network link. Therefore, the signaling overhead associated with mobility management has a severe effect on the wireless link. Moreover, each cell becomes smaller and this increases handoff rate yielding more signaling overhead in the wireless link. In this paper, we propose the IP-Grouping scheme. In the proposed scheme, Access Routers (ARs) with a large rate of handoff are allocated into a Group Zone. The signaling cost in the wireless link can be greatly reduced as the current Care-of Address (CoA) of Mobile Nodes (MNs) is not changed whenever the handoffs occur between ARs within the same Group Zone. The performance of the proposed scheme is compared with the Hierarchical Mobile IPv6 (HMIPv6). We present the simulation results under various condition for IP-Grouping scheme and HMIPv6.