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Approximating multiple class queueing models with loss models

  • CHEVALIER, Philippe B.

    (Université catholique de Louvain (UCL). Center for Operations Research and Econometrics (CORE))

  • VAN DEN SCHRIECK, Jean-Christophe

    (Université catholique de Louvain (UCL). Center for Operations Research and Econometrics (CORE))

Multiple class queueing models arise in situations where some flexibility is sought through pooling of demands for different services. Earlier research has shown that most of the benefits of flexibility can be obtained with only a small proportion of cross-trained operators. Predicting the performance of a system with different types of demands and operator pools with different skills is very difficult. We present an approximation method that is based on equivalent loss systems. We successively develop approximations for the waiting probability, The average waiting time and the service level. Our approximations are validated using a series of simulations. Along the way we present some interesting insights into some similarities between queueing systems and equivalent loss systems that have to our knowledge never been reported in the literature.

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Paper provided by Université catholique de Louvain, Center for Operations Research and Econometrics (CORE) in its series CORE Discussion Papers with number 2008021.

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Date of creation: 01 Mar 2008
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Handle: RePEc:cor:louvco:2008021
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