Analysis of an M/M/c Queueing System with Impatient Customers and Synchronous Vacations

Autor: Dequan Yue, Wuyi Yue, Guoxi Zhao
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Journal of Applied Mathematics, Vol 2014 (2014)
Druh dokumentu: article
ISSN: 1110-757X
1687-0042
DOI: 10.1155/2014/893094
Popis: We consider an M/M/c queueing system with impatient customers and a synchronous vacation policy, where customer impatience is due to the servers’ vacation. Whenever a system becomes empty, all the servers take a vacation. If the system is still empty, when the vacation ends, all the servers take another vacation; otherwise, they return to serve the queue. We develop the balance equations for the steady-state probabilities and solve the equations by using the probability generating function method. We obtain explicit expressions of some important performance measures by means of the two indexes. Based on these, we obtain some results about limiting behavior for some performance measures. We derive closed-form expressions of some important performance measures for two special cases. Finally, some numerical results are also presented.
Databáze: Directory of Open Access Journals