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001-es BibID:	BIBFORM086798
035-os BibID:	(Scopus)85085380394
Első szerző:	Kuki Attila (informatikus, matematikus)
Cím:	Numerical Analysis of Non-Reliable Retrial Queueing Systems with Collision and Blocking of Customers / A. Kuki, J. Sztrik, T. Bérczes, Á. Tóth, D. Efrosinin
Dátum:	2020
ISSN:	1072-3374 1573-8795
Megjegyzések:	The aim of the investigation is a closed retrial queueing system with a finite source. The server can be reached from the source (primary request) or from the orbit (secondary request). If an incoming (primary or secondary) job finds the server busy, two modes are distinguished: the job is transferred to the orbit (no collision) or the job under service is interrupted and both of them are transferred to the orbit (collision). Requests in the orbit can retry reaching the server after a random waiting time. The nonreliable case when the server is subject to breakdown is also investigated. In case of breakdown, when the server is under repair, also two cases can be investigated. For the first, primary calls from the source can reach the system, and they will be sent to the orbit. For the second, the source is blocked, so primary customers are not able to step into the system. This paper focuses on the unreliable system with collision and blocking of parameters. These types of systems can be solved by numerical, asymptotical, and simulation methods. Our goal is to provide a new approach to the algorithmic solution for calculating the steady-state probabilities of the system. Using these quantities the main performance characteristics (utilization of the server, response time, etc.) can be calculated. Examples illustrate the effect of different parameters on the distribution of requests in the system.
Tárgyszavak:	Műszaki tudományok Informatikai tudományok konferenciacikk folyóiratcikk
Megjelenés:	Journal of Mathematical Sciences. - 248 : 1 (2020), p. 1-13. -
További szerzők:	Sztrik János (1953-) (informatikus, matematikus) Bérczes Tamás (1975-) (informatikus) Tóth Ádám (1990-) (mérnökinformatikus) Efrosinin, Dmitry
Pályázati támogatás:	2017-2.2.4-TeT-AT-2017-00010 egyéb EFOP-3.6.3-VEKOP-16-2017-00002 EFOP
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