Seamless handoff scheme for real-time application in the wireless IPv6 networking

To deal with increasing number of the mobile devices and real-time applications in the next generation wireless IPv6 networks, effective mobility management has become a critical problem. IETF proposed Mobile IPv6 (MIPv6) and its fast handoff protocol (FMIPv6) to provide mobility management for this demand. In this paper, we propose a seamless handoff scheme, which reduces the handoff delay by using an advanced Care-of Address (CoA) provisioning and testing method, for real-time applications based on FMIPv6. In our proposal, collision-free CoA is proactively prepared and the time for CoA testing is removed from the FMIPv6 handoff delay to achieve seamless handoff. The simulation results show that our proposal outperforms the current schemes on the aspect of handover delay.