Product-Form Solutions for a Class of Structured Multidimensional Markov Processes
Autor: | Jori Selen, Ijbf Ivo Adan, Jsh Johan van Leeuwaarden |
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Přispěvatelé: | Stochastic Operations Research |
Rok vydání: | 2014 |
Předmět: | |
Zdroj: | SIAM Journal on Applied Mathematics, 74(3), 844-863. Society for Industrial and Applied Mathematics (SIAM) |
ISSN: | 1095-712X 0036-1399 |
DOI: | 10.1137/130943297 |
Popis: | Motivated by queueing systems with heterogeneous parallel servers, we consider a class of structured multi-dimensional Markov processes whose state space can be partitioned into two parts: a finite set of boundary states and a structured multi-dimensional set of states, exactly one dimension of which is infinite. Using separation of variables, we show that the equilibrium distribution, typically of the queue length, can be represented as a linear combination of product forms. For an important subclass of queueing systems, we characterize explicitly the waiting time distribution in terms of mixtures of exponentials. Comment: 21 pages, 2 figures -- version 3 incorporates minor textual and layout changes |
Databáze: | OpenAIRE |
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