Master Selection Policies for Inter-Destination Multimedia Synchronization in Distributed Applications

This paper presents an enhanced version of a proposed extension of the RTP/RTCP standard protocols to acquire Inter-Destination Multimedia Synchronization (IDMS) in one-way distributed applications. Several dynamic policies for selecting the master reference playout point to synchronize are introduced and their suitability is analyzed, for specific network conditions and application requirements, according to the impact of the playout adjustments (such as skips and/or pauses) on the overall quality and the buffer fullness variation. Simulation results prove the ability of the authors' approach, for all the proposed master selection algorithms, to maintain the playout asynchrony between distributed receivers within acceptable limits, by dynamically adjusting their playout timing every time an allowed playout time discrepancy between their playout states is detected.

Provided by: Institute of Electrical and Electronics Engineers Topic: Software Date Added: Jun 2011 Format: PDF

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