Improving the scalability of an IMS-compliant conferencing framework part II: Involving mixing and floor control

Abstract

At IPTComm2007 we presented a paper in which we analyzed the performance of a distributed conferencing framework we have recently designed and implemented. The paper focused on the scalability of the overall framework and demonstrated that the switch from a centralized to a distributed approach can significantly improve the achievable performance. Though, in the cited work, we mainly addressed the signalling aspects of the framework. We did not make any attempt at assessing the performance of our architecture (neither in the centralized, nor in the distributed case) in the presence of mixed media streams. This left us, and perhaps the readers, with a fine sensation of unfinished and motivated us to keep on working on the measurements, this time focusing on the two main aspects that come into play when a real conference is activated in a moderated environment like the one we propose: (i) mixing of the real-time streams generated by the users; (ii) floor control. © 2008 Springer Berlin Heidelberg.