. . . "2005-09-07+02:00"^^ . . . "RIV/00216305:26220/05:PU51686!RIV06-MSM-26220___" . "Simulation of Large IP-based Multimedia Distributions" . . . "Cvrk, Lubom\u00EDr" . "P(1ET110540521), P(1ET301710508), Z(MSM0021630513)" . . "Portsmouth" . "The paper deals with proposing a simulation model to extend the known theoretical results for the reflection and the summarisation feedback methods. The simulation aim is to obtain results closely related to the behaviour of real SSM sessions with millions of receivers. The proposed simulation model consists of various levels of abstraction. The high level represents the general view of communication; the lowest level represents in detail the structures used (e.g. concrete signals exchanged between proccesses). Four main blocks are included in the model: Network, Source, Receivers, and Control. The purpose of each block is closely related to a real SSM architecture. The model has been proposed using the Specification and Description Language (SDL). It is an object-oriented programming language that uses graphical expressions for the source code. We also discuss problems faced during the model development, such as the long time of simulation processing, which is due to searching through tables that gro" . "IADAT" . "Simulation of Large IP-based Multimedia Distributions" . . "Simulation of Large IP-based Multimedia Distributions"@en . "26220" . . "\u010Cl\u00E1nek popisuje n\u00E1vrh modelu pro simulaci zrcadlov\u00E9 a sumariza\u010Dn\u00ED metody unicastov\u00FDch zp\u011Btn\u00FDch kan\u00E1l\u016F p\u0159i multicastov\u00E9 komunikaci s jedn\u00EDm zdrojem dat. \u00DA\u010Delem simulace je obdr\u017Eet v\u00FDsledky z multicastov\u00E9 komunikace, kde je zapojeno p\u0159ibli\u017En\u011B milion u\u017Eivatel\u016F. Tyto velk\u00E9 po\u010Dty jsou p\u0159edpokl\u00E1d\u00E1ny ji\u017E v bl\u00EDzk\u00E9 budoucnosti (nap\u0159. televizn\u00ED vys\u00EDl\u00E1n\u00ED na Internetu). Navr\u017Een\u00FD model je sestaven v r\u016Fzn\u00FDch \u00FArovn\u00EDch abstrakce. Horn\u00ED \u00FArovn\u011B prezentuj\u00ED obecn\u00E9 chov\u00E1n\u00ED, ni\u017E\u0161\u00ED pak detailn\u00ED struktury p\u0159en\u00E1\u0161en\u00FDch dat. Model je tvo\u0159en \u010Dty\u0159mi hlavn\u00EDmi bloky: s\u00ED\u0165, zdroj, p\u0159\u00EDjemce a \u0159\u00EDzen\u00ED. Model byl navr\u017Een pomoc\u00ED jazyka SDL. SDL je objektov\u011B orientovan\u00FD jazyk s grafickou prezentac\u00ED zdrojov\u00FDch k\u00F3d\u016F. V \u010Dl\u00E1nku jsou tak\u00E9 prob\u00EDr\u00E1ny probl\u00E9my p\u0159i v\u00FDvoji modelu, jako nap\u0159\u00EDklad dlouh\u00FD \u010Das simulace."@cs . . . . . "University of Portsmouth, Portsmouth, United Kin" . "84-933971-7-2" . "5"^^ . "Komosn\u00FD, Dan" . . . . . "[F4AB86A83FE6]" . "Multicast, Single source, Multimedia, Protocol, Feedback, Simulation"@en . "Simulace velk\u00FDch IP multimedi\u00E1ln\u00EDch p\u0159enos\u016F"@cs . . "Simulace velk\u00FDch IP multimedi\u00E1ln\u00EDch p\u0159enos\u016F"@cs . "2"^^ . . "The paper deals with proposing a simulation model to extend the known theoretical results for the reflection and the summarisation feedback methods. The simulation aim is to obtain results closely related to the behaviour of real SSM sessions with millions of receivers. The proposed simulation model consists of various levels of abstraction. The high level represents the general view of communication; the lowest level represents in detail the structures used (e.g. concrete signals exchanged between proccesses). Four main blocks are included in the model: Network, Source, Receivers, and Control. The purpose of each block is closely related to a real SSM architecture. The model has been proposed using the Specification and Description Language (SDL). It is an object-oriented programming language that uses graphical expressions for the source code. We also discuss problems faced during the model development, such as the long time of simulation processing, which is due to searching through tables that gro"@en . . "2"^^ . "RIV/00216305:26220/05:PU51686" . "542752" . . "Proceedings IADAT - International Conference on Telecommunications and Computer Networks" . . "110-114" . "Simulation of Large IP-based Multimedia Distributions"@en .