Threshold Autoregressive Models for VBR MPEG Video Traces
نویسندگان
چکیده
In this paper 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.
منابع مشابه
Modeling , Transmission and Multiplexing of Mpeg Vbr Sources over Packet Switched Networks
IZQUIERDO, MICHAEL ROBERT. Modeling, Transmission and Multiplexing of MPEG VBR Video Over Packet Switched Networks. (Under the direction of Dr. Douglas S. Reeves.) This dissertation provides a study of the modeling, transmission and multiplexing of MPEG Variable Bit Rate (VBR) video with an emphasis on the transmission of real-time video broadcasts. An investigation is given of statistical sour...
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