Queues with waiting time dependent service

Queues with waiting time dependent service

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Article ID: iaor20115780
Volume: 68
Issue: 1
Start Page Number: 61
End Page Number: 78
Publication Date: May 2011
Journal: Queueing Systems
Authors: , , ,
Keywords: call centres
Abstract:

Motivated by service levels in terms of the waiting‐time distribution seen, for instance, in call centers, we consider two models for systems with a service discipline that depends on the waiting time. The first model deals with a single server that continuously adapts its service rate based on the waiting time of the first customer in line. In the second model, one queue is served by a primary server which is supplemented by a secondary server when the waiting of the first customer in line exceeds a threshold. Using level crossings for the waiting‐time process of the first customer in line, we derive steady‐state waiting‐time distributions for both models. The results are illustrated with numerical examples.

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