Paper Info
Title
Loss-resilient ATM protocol architecture for MPEG-2 video communications
Abstract
MPEG-2 video communications over ATM networks is one of the most active research areas in the field of computer communications. In the transmission process of a variable bit rate video signal over an ATM network, cells are inevitably exposed to delays, errors, and losses due to the statistical multiplexing used in these networks. These phenomena affect the quality of the video signal, and without adequate measures to control the propagation of the impairments, the quality of the service may fall below acceptable levels. In this paper, we study the impact of cell losses on the quality of an MPEG-2 video sequence encoded in a variable bit rate mode. We introduce a set of control mechanisms at different levels of the protocol architecture to be used in MPEG-2-based video communications systems using ATM networks as their underlying transmission mechanism. Our results (using different video sequences) show the effectiveness to improve the video quality by using a structured set of control mechanisms to overcome for the loss of cells carrying VBR MPEG-2 video streams. We argue that in order to be able to create video systems able to cope with cell losses encountered in computer communications systems, a structured set of error-resilient protocol mechanisms is needed.
Year
DOI
Venue
2000
10.1109/49.848257
IEEE Journal on Selected Areas in Communications
Keywords
Field
DocType
asynchronous transfer mode,computer networks,image sequences,protocols,quality of service,telecommunication control,variable rate codes,video coding,MPEG-2 video communications,MPEG-2 video sequence,cell losses,computer communications,control mechanisms,delays,error-resilient protocol mechanisms,errors,loss-resilient ATM protocol architecture,losses,protocol architecture,quality of service,statistical multiplexing,variable bit rate mode,variable bit rate video signal,video quality,video signal
Computer science,Communications system,Quality of service,Computer network,Real-time computing,Asynchronous Transfer Mode,Statistical time division multiplexing,Video quality,Atmosphere (unit),MPEG-2,Variable bitrate
Journal
Volume
Issue
ISSN
18
6
0733-8716
Citations 
PageRank 
References 
10
0.83
11
Authors
4
Name
Order
Citations
PageRank
P. Cuenca115812.57
L. Orozco-Barbosa217219.75
Quiles, F.J.3241.91
A. Garrido410514.45