Title :
Statistical performance of TV/HDTV traffic over broadband digital networks
Author :
Coelho, Rosângela ; Decreusefond, Laurent
Author_Institution :
CETUC, Pontificia Univ. Catolica do Rio de Janeiro, Brazil
Abstract :
Broadband digital networks are considered a promising communication support for the new generation of broadcasting services. In this paper, we examine the TV/HDTV statistical multiplexing gain (SMG) for two different source smoothing levels that are related to the video sampling frequency. The TV/HDTV arrival samples were generated from a modified version of the fractional Brownian motion (fBm) process. The analyzed TV sequences were encoded with the MPEG-2 and CCIR-TV Recommendation 723 coders. Our results have shown a SMG increasing when using the appropriate smoothing level and taking into account the image and delay requirements. These results demonstrate that broadband networks are an interesting transmission support for TV traffic and that video source smoothing usage can improve the network performance
Keywords :
Brownian motion; Gaussian processes; broadband networks; broadcasting; code standards; delays; digital television; discrete cosine transforms; high definition television; image sampling; image sequences; multiplexing; random processes; smoothing methods; telecommunication standards; telecommunication traffic; transform coding; video coding; CCIR-TV Recommendation 723 coder; DCT coders; Gaussian random variables; MPEG-2 coder; TV sequences; TV/HDTV arrival samples; TV/HDTV traffic; broadband digital networks; broadcasting services; communication support; delay requirement; fractional Brownian motion process; image requirement; network performance; source smoothing levels; statistical multiplexing gain; statistical performance; video sampling frequency; video source smoothing; Brownian motion; Delay; Digital video broadcasting; Frequency; HDTV; Image sequence analysis; Sampling methods; Smoothing methods; TV broadcasting; Telecommunication traffic;
Conference_Titel :
Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE
Conference_Location :
Sydney,NSW
Print_ISBN :
0-7803-4984-9
DOI :
10.1109/GLOCOM.1998.776640
