Title :
Threshold autoregressive models for VBR MPEG video traces
Author :
Jang, Bongseog ; Thompson, Charles
Author_Institution :
Center for Adv. Comput. & Telecommun., Univ. of Massachusetts, Lowell, MA, USA
fDate :
29 Mar-2 Apr 1998
Abstract :
Variable bit rate (VBR) Moving Picture Experts Group (MPEG) coded full-motion video traffic is modeled by a nonlinear time-series process. The threshold autoregressive (TAR) process is of particular interest. The TAR model is comprised of a set of autoregressive (AR) processes that are switched between amplitude sub-regions. To model the dynamics of the switching between the sub-regions a selection of amplitude dependent thresholds and a delay value is required. To this end, an efficient and accurate TAR model construction algorithm is developed to model VBR MPEG-coded video traffic. The TAR model is shown to accurately represent statistical characteristics of the actual full-motion video trace. Furthermore, in simulations for the bit-loss rate actual and TAR traces show good agreement
Keywords :
autoregressive processes; code standards; delays; image sequences; statistical analysis; telecommunication standards; telecommunication traffic; time series; video coding; Moving Picture Experts Group; VBR MPEG video traces; amplitude dependent thresholds; amplitude sub-regions; bit-loss rate; coded full-motion video traffic; delay value; full-motion video trace; nonlinear time-series; simulations; statistical characteristics; switching dynamics; threshold autoregressive models; threshold autoregressive process; variable bit rate; video sequence; Autocorrelation; Bit rate; Delay; Layout; MPEG standards; Telecommunication computing; Telecommunication traffic; Testing; Traffic control; Videoconference;
Conference_Titel :
INFOCOM '98. Seventeenth Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-4383-2
DOI :
10.1109/INFCOM.1998.659656
