A simple approximation for mean waiting time in M/G/1 queue with vacations and limited service discipline

  • Authors:
  • Zhe Zhang;Raymond G Vickson

  • Affiliations:
  • Department of Management Sciences, Faculty of Engineering University of Waterloo Waterloo, Ontario, Canada, N2L 3G1;Department of Management Sciences, Faculty of Engineering University of Waterloo Waterloo, Ontario, Canada, N2L 3G1

  • Venue:
  • Operations Research Letters
  • Year:
  • 1993

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Abstract

This paper considers the M/G/1 queueing system with multiple vacations and E-limited service disciplines. In this kind of system, the server continues serving customers until either a prespecified number of customers have been served consecutively or the system becomes empty; then he goes on multiple vacations. Using stochastic decomposition and conditional probability arguments, we develop a new transform-free approximation for the mean waiting time in the system. In some special cases, the results become exact. Numerical tests indicate that the approximation is acceptably accurate.