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A new view of the heavy-traffic limit theorem for infinite-server queues

Published online by Cambridge University Press:  01 July 2016

Peter W. Glynn  and
Ward Whitt
Peter W. Glynn*
Affiliation:
Stanford University
Ward Whitt*
Affiliation:
AT & T Bell Laboratories
*
∗Postal address: Department of Operations Research, Stanford University, Stanford, CA 94305-4022, USA.
∗∗Postal address: AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, NJ 07974-2070, USA.
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Abstract

This paper presents a new approach for obtaining heavy-traffic limits for infinite-server queues and open networks of infinite-server queues. The key observation is that infinite-server queues having deterministic service times can easily be analyzed in terms of the arrival counting process. A variant of the same idea applies when the service times take values in a finite set, so this is the key assumption. In addition to new proofs of established results, the paper contains several new results, including limits for the work-in-system process, limits for steady-state distributions, limits for open networks with general customer routes, and rates of convergence. The relatively tractable Gaussian limits are promising approximations for many-server queues and open networks of such queues, possibly with finite waiting rooms.

Keywords

MANY-SERVER QUEUESHEAVY TRAFFICDIFFUSION APPROXIMATIONSQUEUEING NETWORKSGAUSSIAN DISTRIBUTIONSSTRONG APPROXIMATIONSG/G/∞QUEUES
Type
Research Article
Information
Advances in Applied Probability , Volume 23 , Issue 1 , March 1991 , pp. 188 - 209
Copyright
Copyright © Applied Probability Trust 1991 

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Footnotes

Research supported by the U.S. Army Research Office under Contract DAAL-03-88-K-0063 and by a Natural Sciences and Engineering Research Council of Canada grant.

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