The heavy-traffic bottleneck phenomenon in open queueing networks

Authors:
S. Suresh;W. Whitt
Affiliations:
AT&T Bell Laboratories, Murray Hill, NJ 07974, USA;AT&T Bell Laboratories, Murray Hill, NJ 07974, USA
Venue:
Operations Research Letters
Year:
1990

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Abstract

This note describes a simulation experiment involving nine exponential queues in series with a non-Poisson arrival process, which demonstrates that the heavy-traffic bottleneck phenomenon can occur in practice (at reasonable traffic intensities) as well as in theory (in the limit). The results reveal limitations in customary two-moment approximations for open queueing networks.