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001-es BibID:	BIBFORM068363
Első szerző:	Efrosinin, Dmitry
Cím:	Reliability analysis of a controllable queueing system with two heterogeneous servers subject to failures / D. Efrosinin, J. Sztrik, M. Farkhadov
Dátum:	2016
Megjegyzések:	To make modern communication systems superior in performance and reliability to the previous generation systemsthey can be supplied with heterogeneous communication links. Such links can differ in availability, link datathroughputs, power consumption and reliability characteristics. To model the dynamic behaviour of the links withdifferent properties a queueing system with non-reliable heterogeneous servers can be used. While the first steps inthe performance analysis of controllable heterogeneous queueing systems have already been developed for completelyreliable servers, a missing link to an applicability of these models is reliability analysis of such queues withservers subject to failures. In this paper we use a matrix transform based method to evaluate reliability measuressuch as reliability function and mean time to the first failure for each server separately and for the total servicefacility under the fixed threshold allocation control policy. The reliability functions are obtained in terms of theLaplace transform and numerical inversion algorithm is used to get the time dependent functions. Additionally anew discrete reliability metric which can be treated as a discrete counterpart to the distribution of the time to failureis introduced. This function specifies the distribution of the number of repairs of the server until a complete failureof the service facility occurs. Some numerical examples illustrate the efficiency of the proposed algorithms.
Tárgyszavak:	Műszaki tudományok Informatikai tudományok előadáskivonat
Megjelenés:	European Conference On Queueing Theory 2016. Toulouse July 18 - 20, 2016. - p. 44.
További szerzők:	Sztrik János (1953-) (informatikus, matematikus) Farkhadov, Mais
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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