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On the starshapeness of G/G/c queueing systems

Published online by Cambridge University Press:  01 July 2016

J. George Shanthikumar*
Affiliation:
University of California, Berkeley
Couchen Wu*
Affiliation:
University of California, Berkeley
*
Postal address: Walter A. Haas School of Business, University of California at Berkeley, Berkeley, CA 94720, USA.
∗∗Postal address: Department of Industrial Engineering and Operations Research, University of California at Berkeley, Berkeley, CA 94720, USA.
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Abstract

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In this paper we show that the waiting and the sojourn times of a customer in a single-stage, multiple-server, G/G/c queueing system are increasing and starshaped with respect to the mean service time. Usefulness of this result in the design of the optimal service speed in the G/G/c queueing system is also demonstrated.

Type
Letter
Copyright
Copyright © Applied Probability Trust 1991 

Footnotes

Supported in part by NSF Grant ECS–8811234.

References

Harel, A. (1990) Convexity results for single-server queues and for multiserver queues with constant service times. J. Appl. Prob. 27, 465468.CrossRefGoogle Scholar
LiYanage, L. and Shanthikumar, J. G. (1990) Second order properties of single stage queueing systems. Technical Report, Walter A. Haas School of Business, University of California, Berkeley, CA.Google Scholar
Marshall, A. W. and Olkin, I. (1979) Inequalities: Theory of Majorization and its Applications . Academic Press, New York.Google Scholar
Meester, L. E. and Shanthikumar, J. G. (1990) Concavity of the throughput of tandem queueing systems with finite buffer storage space. Adv. Appl. Prob. 22, 764767.Google Scholar
Shanthikumar, J. G. and Yao, D. (1988) Stochastic convexity and its applications in parametric optimization of queueing systems. Proc. 27th IEEE Conf. Decision and Control , Austin, TX, 657662.CrossRefGoogle Scholar
Shanthikumar, J. G. and Yao, D. (1989) Second-order stochastic properties in queueing systems. Proc. IEEE 77, 162170.Google Scholar
Shanthikumar, J. G. and Yao, D. (1991) Strong stochastic convexity: closure properties and applications. J. Appl. Prob. 28, 131145.CrossRefGoogle Scholar
Tu, H. and Kumin, H. (1983) A convexity result for a class of GI/G/1 queueing systems. Operat. Res. 31, 948950.Google Scholar
Weber, R. (1983) A note on waiting times in single server queues. Operat. Res. 31, 950951.Google Scholar