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An extensible RTCP control framework for large multimedia distributions

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2 Author(s)
J. Chesterfield ; Cambridge Univ., UK ; E. M. Schooler

The Real-time Transport Control Protocol (RTCP) is a crucial mechanism used, amongst other things, for synchronisation and feedback control in multimedia sessions. However as groups grow to large numbers, it faces two serious challenges: the growing deployment of unidirectional and asymmetric broadcast architectures, such as Source-Specific Multicast and satellite networks, eliminate the shared control backchannel on which RTCP relies; the per-receiver RTCP reporting frequency diminishes prohibitively due to the bandwidth-sharing algorithm. We present new algorithmic techniques that enable RTCP to combat these issues, allowing it to function in a wider range of environments and to scale to larger groups.

Published in:

Network Computing and Applications, 2003. NCA 2003. Second IEEE International Symposium on

Date of Conference:

16-18 April 2003