A novel method for modeling and analysis of distributed video on demand systems

Wong, E.W.M.; Chiu, Man Ying; Zukerman, Moshe; Rosberg, Z.; Chan, Sammy; Zalesky, Andrew

doi:10.1109/icc.2005.1494326

Cited by 9 publications

(2 citation statements)

References 15 publications

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“…This reduces the error associated with assuming that all streams follow a Poisson process since 0-calls do not violate the Poisson assumption. Further, having the fictitious model discriminates between different streams of calls helps reduce the error caused by the independence assumption [5], [6]. The success of OPCA relies on the fact the fictitious model and true model have similar overall blocking probabilities, allowing the advantages described above to take effect.…”

Section: Opcamentioning

confidence: 99%

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Enhanced Blocking Probability Evaluation Method for Circuit-Switched Trunk Reservation Networks

et al. 2007

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Abstract-We consider the problem of estimating steady-state blocking probability for circuit-switched networks that allow alternate routing with particular emphasis on networks protected by trunk reservation. We use a recently proposed blocking probability estimate, the Overflow Priority Classification Approximation (OPCA) as an alternative to the currently used Erlang's Fixed-Point Approximation (EFPA). We demonstrate empirically that OPCA provides a better blocking estimate than EFPA for circuit-switched networks with alternate routing, that are reasonably protected by trunk reservation.

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Section: Opcamentioning

confidence: 99%

“…In fact, the variance is much greater than the mean and these streams are highly correlated [5]. In an attempt to improve the estimate, a novel method known as overflow priority classification approximation (OPCA) was proposed [5], [6].…”

Section: Introductionmentioning

confidence: 99%