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GCAP: A New Multimedia Multicast Architecture for QoS

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Publication date2001
Host publicationProtocols for Multimedia Systems 6th International Conference, PROMS 2001 Enschede, The Netherlands, October 17–19, 2001 Proceedings
EditorsMarten J. van Sinderen , Lambert J.M. Nieuwenhuis
Place of PublicationBerlin
PublisherSpringer Verlag
Pages103-115
Number of pages13
ISBN (print)978-3-540-42708-7
<mark>Original language</mark>English

Publication series

NameLecture Notes in Computer Science
PublisherSpringer
Volume2213
ISSN (Print)0302-9743
ISSN (electronic)1611-3349

Abstract

Despite its obvious suitability for distributed multimedia applications, multicasting has not yet found widespread application. Having analyzed shortcomings of today’s approaches, we devise in the GCAP project a new endto- end transport architecture for multimedia multicasting that supports partial order and partial reliability. In this paper, we argue that, at the network layer, single-source multicasting (PIM-SSM) should be chosen. Consequently, our Monomedia Multicast protocol provides, along with reliability and QoS monitoring functionality, an ALM based multicast solution referred to as TBCP (Tree Building Control Protocol), to be used as back channel for SSM, e.g. for retransmission requests. On top of the Monomedia protocol, our Multimedia Multicast protocol handles multimedia sessions composed of multiple monomedia connections: The FPTP (Fully Programmable Transport Protocol) allows applications to specify, through its API, the (global) synchronization and (individual) reliability requirements within a multimedia session. Our group management approach is focused on group integrity.