Egi, N. and Blundell, N. and Mathy, L. (2006) Efficient overlay audio conferencing. In: NETWORKING 2006. Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communications Systems : 5th International IFIP-TC6 Networking Conference, Coimbra, Portugal, May 15-19, 2006. Proce. Lecture Notes in Computer Science . Springer Verlag, Berlin, pp. 666-677. ISBN 9783540341925Full text not available from this repository.
In this paper, we present a thorough and realistic analysis of audio conferencing over application-level multicast (ALM). Through flexibility and ease-of-deployment, ALM is a compelling alternative group-communication technique to IP Multicast — which has yet to see wide-scale deployment in the Internet. However, proposed ALM techniques suffer from inherent latency inefficiencies, which we show, through realistic simulation and exploration of perceived quality in multi-party conversation, to be greatly problematic for the realisation of truly-scalable audio-conferencing systems over ALM. In this work, we propose to adapt dynamically the application-level distribution structure to the conversational pattern of the audio conference. The contribution of this paper is threefold: we develop a novel perceptual quality model for multi-party audio conversations; we provide dynamic adaptation via a simple next-speaker prediction technique and we validate the proposed approach by using a large and detailed corpus of real multi-party conversations.
|Item Type:||Contribution in Book/Report/Proceedings|
|Uncontrolled Keywords:||ALM ; VoIP ; Conversation Analysis ; Adaptive Conferencing|
|Subjects:||?? qa75 ??|
|Departments:||Faculty of Science and Technology > School of Computing & Communications|
|Deposited On:||07 Jul 2011 16:00|
|Last Modified:||23 Mar 2017 20:41|
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