2026-05-30T07:05:06Zhttps://riuma.uma.es/rest/oai/requestoai:riuma.uma.es:10630/193642026-02-03T12:09:20Zcom_10630_2254col_10630_37959
RIUMA. Repositorio Institucional de la Universidad de Málaga
author
Lebedev, Eugene
2020-03-05T10:53:32Z
2020-03-05T10:53:32Z
2020-03-05
https://hdl.handle.net/10630/19364
The presentation deals with a research of bivariate Markov process {X(t), t>0} whose state space is a lattice semistrip S(X)={0,1,..., c+m}. The process X(t) describes the service policy of a multi-server retrial queue with c servers and m waiting positions in which the rate of repeated flow does not depend on the number of sources of retrial calls.
First, for these models the ergodicity conditions were studied. Then, a vector-matrix representation of steady-state distribution was obtained in the class of queues. This representation allows to write down the stationary probabilities through the model parameters in closed form and to propose the closed formulas of its main performance measures.
The investigative techniques use models and results for the QBD processes together with approximation of the initial model by means of the truncated one. As well as we discuss an application of the developed approach to study retrial queues with the controlled parameters and to solve optimization problems for the model.
eng
Cibernética
Steady-state analysis of M/M/c/c+m – type retrial queueing systems with constant retrial rate
conference output
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URL
https://riuma.uma.es/bitstreams/2e51d6f5-2481-4d5c-9509-5e708c358d59/download
File
MD5
9bfbab3e6d30917065d0c1900caeda8f
18529
application/pdf
Abstracts Lebedev.pdf