CONVEXITY IN TANDEM QUEUES

  • Authors:
  • Ger Koole

  • Affiliations:
  • Department of Mathematics, Vrije Universiteit Amsterdam, The Netherlands, E-mail: koole@cs.vu.nl

  • Venue:
  • Probability in the Engineering and Informational Sciences
  • Year:
  • 2004

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Abstract

We derive convexity results and related properties for the value functions of tandem queuing systems. The results for standard multiserver queues are new. For completeness, we also prove and generalize existing results on tandems of controllable queues. The results can be used to compare queuing systems. This is done for systems with and without batch arrivals and for systems with different numbers of on–off sources.