Title :
A novel VBR video model on ATM networks
Author :
Xu, Shugong ; Huang, Zailu
Author_Institution :
Dept. of Electron. & Inf. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
Several works have concluded that the number of cells per frame of variable bit rate (VBR) video follows a gamma distribution. But few model meets this character. We propose a novel video model, a first-order autoregressive (AR) gamma sequence, in which random variables are marginally distributed as gamma variables. We give the definition of the GAR model and show some characteristics of GAR. The parameter estimation methods are studied too. Simulation results show that our model can meet the characteristics of VBR video better than the former models
Keywords :
asynchronous transfer mode; autoregressive processes; broadband networks; gamma distribution; parameter estimation; telecommunication traffic; visual communication; GAR model; VBR video model; broadband ATM networks; first-order autoregressive gamma sequence; gamma distribution; gamma variables; parameter estimation methods; random variables; simulation results; variable bit rate video; video traffic; Bit rate; Encoding; Helium; Ice; Parameter estimation; Random variables; Statistics; Traffic control;
Conference_Titel :
Communication Technology Proceedings, 1996. ICCT'96., 1996 International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2916-3
DOI :
10.1109/ICCT.1996.545061
