A Reactive Tunneling (RT) Scheme to Improve Handover Latency over the Mobile Network Environment

In the fast handover scheme, MN can prepare for handover when the current link is not broken. Obtaining a new care-of-address (CoA) and building a tunnel for packet forwarding make the fast handover scheme be able to reduce packet loss and handover latency. However, the performance of the fast handover scheme will be downgraded if a MN fails to finish the handover preparation before it disconnects. In this paper, we propose a reactive tunneling (RT) scheme to resolve the aforementioned problems. In the proposed RT scheme, MN can obtain a new Co A in advance and a tunnel is built with less overhead. As a result, the performance of fast handover scheme can be improved.