Title: An intermedia synchronisation mechanism for multimedia distributed systems

Authors: S.E. Pomares Hernandez, J. Estudillo Ramirez, L.A. Morales Rosales, G. Rodriguez Gomez

Addresses: Computer Science Department, National Institute of Astrophysics, Optics and Electronics (INAOE), Luis Enrique Erro #1, Puebla, Mexico. ' Computer Science Department, National Institute of Astrophysics, Optics and Electronics (INAOE), Luis Enrique Erro #1, Puebla, Mexico. ' Computer Science Department, National Institute of Astrophysics, Optics and Electronics (INAOE), Luis Enrique Erro #1, Puebla, Mexico. ' Computer Science Department, National Institute of Astrophysics, Optics and Electronics (INAOE), Luis Enrique Erro #1, Puebla, Mexico

Abstract: Distributed Multimedia Systems (DMS) deal with simultaneous geographically distributed sources by transmitting heterogeneous data. The preservation of temporal relations among different data types and simultaneous distributed sources is an open research area. This paper proposes a temporal synchronisation mechanism to be used at runtime in a DMS. One original aspect is that the present work avoids the use of a common reference by executing all multimedia temporal relations according to their causal dependencies. The mechanism is emulated considering a WAN environment and using MPEG-4 encoders. The results show that our mechanism is effective in reducing the intermedia synchronisation error.

Keywords: distributed multimedia systems; WANs; wide area networks; temporal synchronisation; causal ordering; MPEG-4 encoders.

DOI: 10.1504/IJIPT.2009.028659

International Journal of Internet Protocol Technology, 2009 Vol.4 No.3, pp.207 - 218

Available online: 22 Sep 2009 *

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