Multimedia Synchronization for Handoff Control with MPEG in All-IP Mobile Networks

This paper proposes a handoff management scheme for the synchronization algorithm of an all-IP based multimedia system. The synchronization algorithm and handoff management method are proposed to realize smooth play-out of a multimedia stream with minimum loss under handoff conditions which normally occur due to the movement of mobile hosts. Handoffs, which frequently occur under mobile environments, result in loss of multimedia streams stored in base stations due to the change of base station. As a result, the multimedia stream shows a low QoS due to disruption of the stream at play-out. The proposed scheme shows that it not only provides a stream of continuous play-out but also shows a higher packet play-out rate and lower loss rate than previous methods.