Title :
Bandwidth-allocation schemes for variable-bit-rate MPEG sources in ATM networks
Author :
Pancha, Pramod ; Zarki, Magda El
Author_Institution :
Dept. of Electr. Eng., Pennsylvania Univ., Philadelphia, PA, USA
fDate :
6/1/1993 12:00:00 AM
Abstract :
The complex traffic characteristics of variable-bit-rate (VBR) video sources makes them difficult to accommodate in asynchronous-transfer-mode (ATM) networks. To efficiently transport these services will require both an understanding of the source traffic and novel network control schemes. The performance of variable-bandwidth-allocation schemes that estimate the required bandwidth for a VBR Motion Picture Experts Group (MPEG) video source is studied using a simple prediction algorithm. The advantages of using a layered MPEG coder over the standard MPEG coder are discussed. A method for controlling a layered MPEG coder to reduce the effect of cell losses when compared to a standard MPEG coder is demonstrated
Keywords :
asynchronous transfer mode; filtering and prediction theory; image coding; telecommunication traffic; video signals; ATM networks; MPEG coder; MPEG sources; Motion Picture Experts Group; asynchronous-transfer-mode; cell losses; network control schemes; prediction algorithm; source traffic; variable bit rate sources; variable-bandwidth-allocation schemes; video sources; Asynchronous transfer mode; Bandwidth; Circuits; Code standards; Communication system traffic control; Intelligent networks; Layout; Motion pictures; Video compression; Video sequences;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
