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On the Problem of Specifying the Number of Floors for a Voice-Only Conference on Packet Networks

Prasad, Venkatesha R and Jamadagni, HS and Shankar, HN (2003) On the Problem of Specifying the Number of Floors for a Voice-Only Conference on Packet Networks. In: International Conference on Information Technology: Research and Education, 2003. ITRE2003, 11-13 August, New Jersey,USA, 22 -26.


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Voice conferencing is an essential block of any multimedia system used for collaborative work. In a collaborative environment floor control is an important issue that is dealt by many; yet fixing the number of floors is an open problem. In an audio conference, mixing streams from too many concurrent speakers degrades the voice quality. Therefore setting an upper bound for the number of streams (floors) that may be mixed is sine qua non for providing quality conferencing service. We address the problem of setting the upper bound on number of floors for a system meant to support concurrent multiparty audio sessions on top of IP multicasting. A measure called "Loudness Number" that is used to manage the number of floors is briefly outlined to the extent of making this paper self-contained. Our implementation at a functional level on a campus-wide network of Windows$\copyright$ systems has yielded satisfactory performance.

Item Type: Conference Paper
Publisher: IEEE
Additional Information: �©1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: VoIP;Conference;Floors;Loudness Number
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited: 22 Dec 2005
Last Modified: 19 Sep 2010 04:22
URI: http://eprints.iisc.ac.in/id/eprint/4729

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