Frame spreading and a modified priority scheme for VBR MPEG video transmission in ATM networks

Author

Ismail, M.R. ; Lambadaris, I.E. ; Devetsikiotis, M. ; Kaye, A.R.

Author_Institution

Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, Ont., Canada

fYear

1994

fDate

25-28 Sep 1994

Firstpage

526

Abstract

This paper presents the study of an efficient transmission mechanism, using frame spreading, for variable bit rate MPEG video sources, through an ATM multiplex such as a cable head-end. A priority scheme is implemented in a software MPEG encoder, that produces similar traffic in both partitions, (i.e., the high and low priority partitions) for all three frame types, (intra, predicted and interpolated) used in MPEG. An ATM multiplexer with pushout buffer mechanism is implemented for this study, in order to provide priority scheduling in the multiplexer. The multiplexer is fed with similar VBR MPEG sources and performance statistics such as cell loss ratios are studied for various frame spreading scenarios

Keywords

asynchronous transfer mode; data compression; telecommunication traffic; variable rate codes; video coding; ATM networks; VBR MPEG video transmission; cable head-end; cell loss ratios; efficient transmission mechanism; frame spreading; high priority partition; low priority partition; modified priority scheme; multiplexer; performance statistics; pushout buffer mechanism; software MPEG encoder; Asynchronous transfer mode; Communication system traffic; Data compression; Image coding; Variable rate codes; Video signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 1994. Conference Proceedings. 1994 Canadian Conference on

Conference_Location

Halifax, NS

Print_ISBN

0-7803-2416-1

Type

conf

DOI

10.1109/CCECE.1994.405804

Filename

405804