An Extensible RTCP Control Framework for Large Multimedia Distributions

Authors:
Julian Chesterfield;Eve M. Schooler
Affiliations:
-;-
Venue:
NCA '03 Proceedings of the Second IEEE International Symposium on Network Computing and Applications
Year:
2003

Citing 0
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Journal of Network and Computer Applications

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Abstract

The Real-time Transport Control Protocol (RTCP) is a crucialmechanism used, amongst other things, for synchronisationand feedback control in multimedia sessions. Howeveras groups grow to large numbers, it faces two seriouschallenges: the growing deployment of unidirectional andasymmetric broadcast architectures, such as Source-SpecificMulticast and satellite networks, eliminate the shared controlbackchannel on which RTCP relies; the perreceiverRTCP reporting frequency diminishes prohibitively due to thebandwidth-sharing algorithm. We present new algorithmictechniques that enable RTCP to combat these issues, allowingit to function in a wider range of environments and to scale tolarger groups.