A Petri Net based model for multipoint multistream synchronization in multimedia conferencing

Abstract

Distributed multimedia application over IP network is an evolving paradigm for the researcher in the field of Information and Communication Technology (ICT). There are several applications of this technology -video conferencing, teleteaching and any collaborative application. Maintaining the satisfactory Quality of Service [1] and synchronization is a big challenge to the researchers in this field. In this paper, we extend our previous work [2] by ensur-ing multistream multipoint synchronization as an issue, involving the play out process of two streams (audio and video that were generated at the same time and bear temporal relationship ) at different receivers at the same time and maintaining the temporal relationship between them to achieve fairness among the receivers. In this paper, we propose a distributed algorithm for achieving multi-stream multipoint synchronization and we also model the algorithm with Stochastic Petri Nets and verify its correctness. © 2011 Springer-Verlag.