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001-es BibID:	BIBFORM087241
035-os BibID:	(WoS)000553268600008 (Scopus)85088583742
Első szerző:	Zaghouani, Mohamed Hedi (informatikus, matematikus)
Cím:	Performance evaluation of finite-source Cognitive Radio Networks with impatient customers / Mohamed Hedi Zaghouani, János Sztrik
Dátum:	2020
ISSN:	1787-5021 1787-6117
Megjegyzések:	The current paper takes into consideration a cognitive radio network with impatient customers, by the help of finite-source retrial queueing system. We consider two different types of customers (Primary and Secondary) assigned to two interconnected frequency bands. A first frequency band with a priority queue and a second one with an orbit, both are respectively dedicated for the Primary Users (PUs) and Secondary Users (SUs). In case the servers are busy, both customers (Licensed and Unlicensed) join either the queue or the orbit. Before joining the orbit, secondary customers receive a random retrial time according to Exponential distribution, which is the holding time before the next retry. Unlicensed users (impatient) are obliged to leave the system once their total waiting time exceeds a given maximum waiting time. The novelty of this work is the investigation of the abandonment and its impact on several performance measures of the system such as the mean response time and waiting time of users, probability of abandonment of SU, etc. Several figures illustrate the problem in question by the help of simulation.
Tárgyszavak:	Műszaki tudományok Informatikai tudományok idegen nyelvű folyóiratközlemény hazai lapban folyóiratcikk
Megjelenés:	Annales Mathematicae et Informaticae. - 51 (2020), p. 89-99. -
További szerzők:	Sztrik János (1953-) (informatikus, matematikus)
Pályázati támogatás:	EFOP-3.6.3-VEKOP-16-2017-00002 EFOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat Szerző által megadott URL
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