"Komosn\u00FD, Dan" . . . "Subgroup Feedback for Source-specific Multicast"@en . "INSTICC" . "2006-08-07+02:00"^^ . "502364" . . "P(1ET301710508), Z(MSM0021630513)" . "26220" . . "RIV/00216305:26220/06:PU59333!RIV07-MSM-26220___" . "1"^^ . . "1"^^ . . . . . . "972-8865-64-3" . "Setubal" . "Skupinov\u00E1 signalizce pro multicast s jedn\u00EDm zdrojem dat"@cs . "Skupinov\u00E1 signalizce pro multicast s jedn\u00EDm zdrojem dat"@cs . "Subgroup Feedback for Source-specific Multicast"@en . "Subgroup Feedback for Source-specific Multicast" . . . "Subgroup Feedback for Source-specific Multicast" . "Multicast, Source-specific, Feedback, Subgroup"@en . . . "Proceedings of the Internation Conference on Signal Processing and Multimeda Applications" . "7"^^ . "The recent deployment of IP-based TV and radio distributions requires one-to-many multicast instead of the traditional many-to-many data distribution. These large multimedia sessions usually rely on the real time protocol (RTP) and the real time control protocol (RTCP). Although one-to-many multicast offers the required communication, it does not support the multicast feedback channel for carrying the RTCP control messages. Therefore, unicast feedback channels from session members to the source are used to carry these messages. In this paper, we introduce subgroup feedback scenarios for source-specific multicast, which is built on the one-to-many philosophy. Our extensions are based on the subgroup feedback framework standardized in the IETF. We outline a possible implementation of the subgroup feedback using the receiver summary information (RSI) packet. A theoretical RSI packet rate analysis is also presented in the paper." . "295-301" . "\u010Cl\u00E1nek se zab\u00FDv\u00E1 typem multicastu, kde je pouze jeden zdroj a v\u00EDce p\u0159\u00EDjemc\u016F. Tato struktura se st\u00E1v\u00E1 popul\u00E1rn\u00ED p\u0159i nasazov\u00E1n\u00ED nov\u00FDch slu\u017Eeb, jako je nap\u0159\u00EDklad vys\u00EDl\u00E1n\u00ED IPTV. Multicast je \u010Dasto postaven na protokolu RTP/RTCP (Real Time Protocol/Real Time Control Protocol). Protokol RTCP slou\u017E\u00ED k p\u0159enosu signalizace, kterou je nutno p\u0159en\u00E1\u0161et i od p\u0159\u00EDjemc\u016F ke zdroji. Probl\u00E9mem multicastu s jedn\u00EDm zdrojem je, \u017Ee nelze tuto signalizace p\u0159en\u00E1\u0161et po multicastov\u00E9m spojen\u00ED. Proto se pou\u017E\u00EDvaj\u00ED unicastov\u00E1 spojen\u00ED od p\u0159\u00EDjemc\u016F ke zdroji. V tomto \u010Dl\u00E1nku jsou pops\u00E1ny mo\u017Enosti p\u0159enosu t\u00E9to signalizace pomoc\u00ED sdru\u017Eov\u00E1n\u00ED p\u0159\u00EDjemc\u016F do skupin. Skupiny jsou definov\u00E1ny podle kvality p\u0159enosu na stran\u011B p\u0159\u00EDjemc\u016F (nap\u0159. ztr\u00E1tovost paket\u016F a variace zpo\u017Ed\u011Bn\u00ED)."@cs . . . . "[6F2B747863EC]" . . "Portugal, Setubal" . "The recent deployment of IP-based TV and radio distributions requires one-to-many multicast instead of the traditional many-to-many data distribution. These large multimedia sessions usually rely on the real time protocol (RTP) and the real time control protocol (RTCP). Although one-to-many multicast offers the required communication, it does not support the multicast feedback channel for carrying the RTCP control messages. Therefore, unicast feedback channels from session members to the source are used to carry these messages. In this paper, we introduce subgroup feedback scenarios for source-specific multicast, which is built on the one-to-many philosophy. Our extensions are based on the subgroup feedback framework standardized in the IETF. We outline a possible implementation of the subgroup feedback using the receiver summary information (RSI) packet. A theoretical RSI packet rate analysis is also presented in the paper."@en . "RIV/00216305:26220/06:PU59333" . .