Title :
Bandwidth allocation for VBR video traffic in ATM networks
Author :
Chu, Hon-Wai ; Tsang, Danny H K ; Yang, Tao
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, Hong Kong
Abstract :
In this paper, we study the bandwidth allocation problem for an ATM multiplexer loaded with compressed VBR video sources. To estimate the bandwidth required by a VBR video source, we characterize its traffic by five parameters: peak rate, bottom rate, mean rate, standard deviation, and the coefficient of the autocorrelation function. The aggregate traffic of a number of VBR video sources is modelled by a discrete-time Markov modulated deterministic process (D-MMDP) which is approximately equal to the superposition of a number of identical and independent two-active-state mini-sources. Based on the effective bandwidth approach and the Gaussian approximation, we derive simple formulas for estimating the required bandwidth
Keywords :
Gaussian distribution; Markov processes; asynchronous transfer mode; discrete time systems; telecommunication congestion control; telecommunication traffic; video signal processing; ATM multiplexer; ATM networks; Gaussian approximation; VBR video traffic; aggregate traffic; autocorrelation function coefficient; bandwidth allocation; bottom rate; compressed VBR video sources; discrete-time Markov modulated deterministic process; effective bandwidth approach; mean rate; peak rate; standard deviation; two-active-state mini-sources; Aggregates; Asynchronous transfer mode; Autocorrelation; Bandwidth; Channel allocation; Gaussian approximation; Multiplexing; Telecommunication traffic; Traffic control; Video compression;
Conference_Titel :
Computer Communications and Networks, 1995. Proceedings., Fourth International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-8186-7180-7
DOI :
10.1109/ICCCN.1995.540180
