Heavy‐traffic asymptotics for stationary GI/G/1‐type Markov chains

Heavy‐traffic asymptotics for stationary GI/G/1‐type Markov chains

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Article ID: iaor20123337
Volume: 40
Issue: 3
Start Page Number: 185
End Page Number: 189
Publication Date: May 2012
Journal: Operations Research Letters
Authors: , ,
Keywords: GI/G/1 queues, heavy traffic
Abstract:

Asmussen (1987) proved a heavy‐traffic limit theorem for the GI/G/1‐type Markov chain. As a corollary, the theorem shows that in the heavy‐traffic limit, the stationary distribution of the properly scaled level variable is geometric and independent of the phase variable. In this paper, the heavy‐traffic asymptotics of the stationary distribution is proved under a weaker condition than Asmussen’s, by the characteristic function approach.

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