Stationary waiting time distribution in queues with phase type service and in quasi-birth-and-death processes
- 1 January 1985
- journal article
- research article
- Published by Taylor & Francis in Communications in Statistics. Stochastic Models
- Vol. 1 (2) , 125-136
- https://doi.org/10.1080/15326348508807007
Abstract
We consider the stationary waiting time distribution under the FIFO discipline for multi-server queues with (possibly heterogeneous) phase type servers and renewal arrivals, and for queues which can be represented as a quasi-birth-and-death process. It is shown that the complementary distribution function of the stationary waiting time in these queues is of the form where θ is positive and the dj are probabilities. A complete characterization of θ and dj , which lends itself to interesting probabilistic interpretations, is given for all these cases. Except in the case of the multiserver GI/PH/c queue which is to be discussed in detail elsewhere, we provide an efficient algorithm to compute the waiting time distribution.Keywords
This publication has 3 references indexed in Scilit:
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- Operator-geometric stationary distributions for markov chains, with application to queueing modelsAdvances in Applied Probability, 1982
- Asymptotic behavior of the stationary distributions in the GI/PH/c queue with heterogeneous serversProbability Theory and Related Fields, 1981