Hostname: page-component-74656f9884-j7cmm Total loading time: 0 Render date: 2026-11-10T14:42:45.192Z Has data issue: false hasContentIssue false

An iterative approximation scheme for repetitive Markov processes

Published online by Cambridge University Press:  14 July 2016

Tolga Tüfekçi*
Affiliation:
Middle East Technical University
Refik Güllü*
Affiliation:
Middle East Technical University
*
∗ Postal address: Industrial Engineering Department, Information Technologies and Electronics Research Institute, (BILTEN), Middle East Technical University, 06531, Ankara, Turkey.
∗ Postal address: Industrial Engineering Department, Information Technologies and Electronics Research Institute, (BILTEN), Middle East Technical University, 06531, Ankara, Turkey.

Abstract

Repetitive Markov processes form a class of processes where the generator matrix has a particular repeating form. Many queueing models fall in this category such as M/M/1 queues, quasi-birth-and-death processes, and processes with M/G/1 or GI/M/1 generator matrices. In this paper, a new iterative scheme is proposed for computing the stationary probabilities of such processes. An infinite state process is approximated by a finite state process by lumping an infinite number of states into a super-state. What we call the feedback rate, the conditional expected rate of flow from the super-state to the remaining states, given the process is in the super-state, is approximated simultaneously with the steady state probabilities. The method is theoretically developed and numerically tested for quasi-birth-and-death processes. It turns out that the new concept of the feedback rate can be effectively used in computing the stationary probabilities.

Information

Type
Research Papers
Copyright
Copyright © Applied Probability Trust 1999 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable