A comparison of the stationary distributions of GI/M/c/n and GI/M/c

A comparison of the stationary distributions of GI/M/c/n and GI/M/c

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Article ID: iaor19992672
Country: United Kingdom
Volume: 35
Issue: 2
Start Page Number: 510
End Page Number: 515
Publication Date: Jun 1998
Journal: Journal of Applied Probability
Authors:
Keywords: GI/M/c queues
Abstract:

In this note, we compare the arrival and time stationary distributions of the number of customers in the GI/M/c/n and GI/M/c queueing systems as n tends to infinity. We show that earlier results established for GI/M/1/n and GI/M/1 remain true. Namely, it is proved that if the interarrival time cumulative distribution system H is non lattice with mean value λ–1 and if the traffic intensity ρ = (λ/μc) is strictly less than one, then the convergence rates in l1 norm of the arrival and time stationary distributions of GI/M/c/n to the corresponding stationary distributions of GI/M/c are geometric and are characterized by ω, the unique solution in (0, 1) of the equation z = ∫0 exp{–μc(1 – z)t} dH(t).

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