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Digital Library of the
European Council for Modelling and Simulation |
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Title: |
Performance
Evaluation Of Dependent Two-Stage Services |
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Authors: |
Werner Sandmann |
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Published in:
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ECMS
2007 Proceedings Edited
by: Ivan
Zelinka, Zuzana Oplatkova, Alessandra Orsoni ISBN:
978-0-9553018-2-7 Doi:
10.7148/2007 21st European
Conference on Modelling and Simulation, Prague, June
4-6, 2007 |
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Citation
format: |
Sandmann, W. (2007). Performance
Evaluation Of Dependent Two-Stage Services. ECMS 2007 Proceedings edited by:
I. Zelinka, Z. Oplatkova, A. Orsoni (pp. 74-79).
European Council for Modeling and Simulation. doi:10.7148/2007-0074. |
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DOI: |
http://dx.doi.org/10.7148/2007-0074 |
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Abstract: |
In
many scenarios services are provided in successive stages. While tandem
queues appropriately reflect the structure of such scenarios, the typical
assump- tion that service times at different stages are inde- pendent often
does not fit to reality. We examine, via simulation, the impact of
dependencies among service times on expected customer waiting times. The
usual network simulation overhead caused by event list handling is avoided by
an extension of the Lindley recursion to the two-stage case. Numerical
results are presented for exponentially and uniformly distributed service
times with different types of de- pendencies and varying server utilizations. |
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Full
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