Optimal strategy policy in batch arrival queue with server breakdowns and multiple vacations

Jau-Chuan Ke ()

Mathematical Methods of Operations Research, 2003, vol. 58, issue 1, 56 pages

Abstract: This paper considers a like-queue production system in which server vacations and breakdowns are possible. The decision-maker can turn a single server on at any arrival epoch or off at any service completion. We model the system by an M [x] /M/1 queueing system with N policy. The server can be turned off and takes a vacation with exponential random length whenever the system is empty. If the number of units waiting in the system at any vacation completion is less than N, the server will take another vacation. If the server returns from a vacation and finds at least N units in the system, he immediately starts to serve the waiting units. It is assumed that the server breaks down according to a Poisson process and the repair time has an exponential distribution. We derive the distribution of the system size through the probability generating function. We further study the steady-state behavior of the system size distribution at random (stationary) point of time as well as the queue size distribution at departure point of time. Other system characteristics are obtained by means of the grand process and the renewal process. Finally, the expected cost per unit time is considered to determine the optimal operating policy at a minimum cost. The sensitivity analysis is also presented through numerical experiments. Copyright Springer-Verlag 2003

Keywords: Batch arrivals; Breakdowns; Control policy; Multiple vacations; Sensitivity analysis (search for similar items in EconPapers)
Date: 2003
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DOI: 10.1007/s001860300279

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