A two-phase handoff management scheme for synchronizing multimedia units over wireless networks

This paper presents a two-phase handoff management scheme for synchronization algorithms of wireless multimedia systems. This scheme allows mobile hosts to receive multimedia units without delivery interruption while they are moving from one cell to another cell. The messages passing among mobile hosts, base station and servers include a time stamp to compute delay time for each multimedia unit for each server. The scheme always search for a Quasi-receiver among base stations with which mobile hosts are communicating to synchronize multimedia units. We discuss the algorithms and also present a set of simulation experiments to evaluate the performance of our scheme using message complexity and buffer usage at each frame arrival time. Our results indicate that our scheme exhibits no underflow within the bounded delivery time.