GPS Assisted Fast-Handoff Mechanism for Real-Time Communication

Reducing transient data loss during a mobile´s frequent subnet handoff depends upon several factors such as layer 2 handoff detection, faster IP address discovery, and registration and media re-direction. We present a new methodology that can provide faster IP address discovery using GPS coordinate of the mobile. This mechanism provides a suitable approach for high-speed vehicular users. It discusses several issues involved with this handoff process such as layer 2 detection, IP address assignment, and duplicate address detection. It also describes the experiment carried out in an external testbed.