Synchronized Multicast Media Streaming Employing Server-Client Coordinated Adaptive Playout and Error Control

Jinyong JO, JongWon KIM

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Summary :

A new inter-client synchronization framework employing a server-client coordinated adaptive playout and error control toward one-to-many (i.e., multicast) media streaming is discussed in this paper. The proposed adaptive playout mechanism controls the playout speed of audio and video by adopting the time-scale modification of audio. Based on the overall synchronization status as well as the buffer occupancy level, the playout speed of each client is manipulated within a perceptually tolerable range. By coordinating the playout speed of each client, the inter-client synchronization with respect to the target presentation time is smoothly achieved. Furthermore, RTCP-compatible signaling between the server and group-clients is performed to achieve the inter-client synchronization and error recovery, where the exchange of controlling message is restricted. Simulation results show the performance of the proposed multicast media streaming framework.

Publication
IEICE TRANSACTIONS on Communications Vol.E87-B No.6 pp.1670-1680
Publication Date
2004/06/01
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Multimedia Systems

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