Multiplexing real time video services

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Statistical Bit Rate (SBR) transfer capability is considered a good option for supporting Variable Bit Rate (VBR) services. However, its study is somewhat in lag compared with Deterministic Bit Rate (DBR) or Available Bit Rate (ABR) capabilities. The definition of a general Call Acceptance Control (...

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Detalles Bibliográficos
Autores principales:	Simón, María, Pechiar, Juan
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	1999
Materias:	Ciencias Informáticas Network communications Video (e.g., tape, disk, DVI) Asynchronous Transfer Mode (ATM)
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/9381 http://journal.info.unlp.edu.ar/wp-content/uploads/2015/papers_01/DEFIN.PDF
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-9381
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Informáticas Network communications Video (e.g., tape, disk, DVI) Asynchronous Transfer Mode (ATM)
spellingShingle	Ciencias Informáticas Network communications Video (e.g., tape, disk, DVI) Asynchronous Transfer Mode (ATM) Simón, María Pechiar, Juan Multiplexing real time video services
topic_facet	Ciencias Informáticas Network communications Video (e.g., tape, disk, DVI) Asynchronous Transfer Mode (ATM)
description	Statistical Bit Rate (SBR) transfer capability is considered a good option for supporting Variable Bit Rate (VBR) services. However, its study is somewhat in lag compared with Deterministic Bit Rate (DBR) or Available Bit Rate (ABR) capabilities. The definition of a general Call Acceptance Control (CAC) function is difficult to state for SBR. We present some results regarding the multiplexing of real time data streams, mainly from interactive video services, wich ara naturally VBR an therefore candidates to use the SBR capability. It is shown that image quality is improved by using SBR instead of DBR. The coder design does not become more complicated. In fact, it remains the same. We propose a statistical model for the traffic generated by such video sources. The delays introduced by a switch are studied following two approaches. Exact bounds are found for a worst ase situation, indicating a very low statistical gain. However, simulations show that these bounds are too pessimistic since the worst case very rarely occurs. A very high mean load can be reached with acceptable delays. Indeed, the statistical gain is found to be significant The CAC for this kind of service may be simple because, even assuming pessimistic figures, the burstiness for a real-time video data stream appears to be low.
format	Articulo Articulo
author	Simón, María Pechiar, Juan
author_facet	Simón, María Pechiar, Juan
author_sort	Simón, María
title	Multiplexing real time video services
title_short	Multiplexing real time video services
title_full	Multiplexing real time video services
title_fullStr	Multiplexing real time video services
title_full_unstemmed	Multiplexing real time video services
title_sort	multiplexing real time video services
publishDate	1999
url	http://sedici.unlp.edu.ar/handle/10915/9381 http://journal.info.unlp.edu.ar/wp-content/uploads/2015/papers_01/DEFIN.PDF
work_keys_str_mv	AT simonmaria multiplexingrealtimevideoservices AT pechiarjuan multiplexingrealtimevideoservices
bdutipo_str	Repositorios
_version_	1764820491786256387

Multiplexing real time video services

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