New statistical model for VBR video traffic in ATM networks

Author

Sisodia, Gajendra ; De, Subrata ; Hedley, Mark ; Guan, Ling

fYear

1998

fDate

12-15 Oct 1998

Firstpage

448

Lastpage

453

Abstract

We present a new approach to modelling variable bit rate (VBR) coded video sources in asynchronous transfer mode (ATM) networks. Unlike the existing methods which model the number of cells generated by the coder for a sequence of video frames, the new approach improves modelling accuracy by considering the characteristics of different cells generated by the coder, and modelling the number of cells in each type of macroblocks of a frame separately. The model is tested by comparing the cell loss rate in simulation of an ATM switch to cell loss rate produced when traces generated by the model are used as the source. Comparison with the existing models are performed in the area of measuring the quality of their predictions for network performance and the grade of service experienced by a user

Keywords

asynchronous transfer mode; image sequences; packet switching; quality of service; statistical analysis; telecommunication traffic; variable rate codes; video coding; ATM networks; ATM switch; VBR video traffic; asynchronous transfer mode; cell loss rate; coded video sources; grade of service; macroblocks; modelling accuracy; multiplexer model; network performance; simulation; statistical model; variable bit rate; video frames sequence; Area measurement; Asynchronous transfer mode; Bit rate; Character generation; Performance evaluation; Predictive models; Switches; Telecommunication traffic; Testing; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Communications and Networks, 1998. Proceedings. 7th International Conference on

Conference_Location

Lafayette, LA

ISSN

1095-2055

Print_ISBN

0-8186-9014-3

Type

conf

DOI

10.1109/ICCCN.1998.739948

Filename

739948