DocumentCode :
401454
Title :
Bandwidth estimation for multiplexed videos using MMG-based single video traffic model
Author :
Zhou, Wei ; Ramakrishnan, S. ; Sarkar, Dilip ; Sarkar, Uttam K.
Author_Institution :
Dept. of Comput. Sci., Miami Univ., Coral Gables, FL, USA
Volume :
6
fYear :
2003
fDate :
1-5 Dec. 2003
Firstpage :
3564
Abstract :
A video on demand (VoD) system is expected to transmit many movies over a single channel as demanded by the end users. When several videos are transmitted simultaneously over a link the effective bandwidth required per video is usually much lower than that needed by a single video because of multiplexing gain. Fast and accurate estimation of multiplexing gain is necessary for developing call admission control (CAC) algorithms. Known models which estimate queue size and effective bandwidth of multiplexed video system cannot capture frame size variations in different segments of a video, and are not very useful particularly when the number of videos is not too large. The multinomial model proposed in this paper is built on a Markov-modulated gamma (MMG)-based traffic model of a single video. It takes into consideration average frame size variations in different segments of a video and can predict multiplexing gain for any number of multiplexed videos. The model has been validated using MPEG traces of commercial movies.
Keywords :
Markov processes; multiplexing; telecommunication channels; telecommunication congestion control; telecommunication traffic; video on demand; MMG-based single video traffic model; Markov-modulated gamma based traffic model; bandwidth estimation; call admission control algorithms; effective bandwidth; end users; multinomial model; multiplexed videos; multiplexing gain; queue size estimation; video on demand system; Bandwidth; Call admission control; Computer science; Mathematical model; Motion pictures; Predictive models; Telecommunication traffic; Traffic control; Transform coding; Video on demand;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN :
0-7803-7974-8
Type :
conf
DOI :
10.1109/GLOCOM.2003.1258897
Filename :
1258897
Link To Document :
بازگشت