Title :
Packet delays in multiplexed video streams
Author :
Thompson, C. ; Chandra, K. ; Mulpur, S. ; Davis, J.
Author_Institution :
Center for Adv. Comput. & Telecommun., Massachusetts Univ., Lowell, MA, USA
Abstract :
A model for multiplexed video sources and the resulting packet delay distribution for a fluid buffer is given. A measurement driven Markov chain based traffic model for a variable bit rate (VBR) source is used in the analysis. A characterization of the queueing delays of a multiplexed stream comprised of statistically identical sources is undertaken. It is shown that inadequate spectral content in the single source generator matrix manifests in an underestimate of the packet delay probabilities for the multiplexed stream. A reduced dimension generator matrix is derived for the multiplexed stream that amply models the spectral content of the multiplexed sources. The simulated and calculated results using the aforementioned model are shown to agree favorably
Keywords :
Markov processes; multimedia communication; packet switching; queueing theory; variable rate codes; visual communication; Markov chain; fluid buffer; measurement driven; multiplexed stream; multiplexed video sources; packet delay; packet delay distribution; queueing delays; spectral content; traffic model; variable bit rate; Aggregates; Bit rate; Delay estimation; Distributed computing; Eigenvalues and eigenfunctions; Queueing analysis; Sampling methods; Streaming media; Telecommunication computing; Traffic control;
Conference_Titel :
Multimedia Signal Processing, 1997., IEEE First Workshop on
Conference_Location :
Princeton, NJ
Print_ISBN :
0-7803-3780-8
DOI :
10.1109/MMSP.1997.602667
