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On a Batch Arrival Queuing System Equipped with a Stand-by Server during Vacation Periods or the Repairs Times of the Main Server

Author

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  • Rehab F. Khalaf
  • Kailash C. Madan
  • Cormac A. Lukas

Abstract

We study a queuing system which is equipped with a stand-by server in addition to the main server. The stand-by server provides service to customers only during the period of absence of the main server when either the main server is on a vacation or it is in the state of repairs due to a sudden failure from time to time. The service times, vacation times, and repair times are assumed to follow general arbitrary distributions while the stand-by service times follow exponential distribution. Supplementary variables technique has been used to obtain steady state results in explicit and closed form in terms of the probability generating functions for the number of customers in the queue, the average number of customers, and the average waiting time in the queue while the MathCad software has been used to illustrate the numerical results in this work.

Suggested Citation

  • Rehab F. Khalaf & Kailash C. Madan & Cormac A. Lukas, 2011. "On a Batch Arrival Queuing System Equipped with a Stand-by Server during Vacation Periods or the Repairs Times of the Main Server," Journal of Probability and Statistics, Hindawi, vol. 2011, pages 1-11, July.
    • Handle: RePEc:hin:jnljps:812726
    DOI: 10.1155/2011/812726
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