On the Applicability of Stochastic Petri Nets for Analysis of Multiserver Retrial Systems with Different Vacation Policies
This paper deals with retrial systems where servers are subject to random vacations. So far, these systems were analyzed only by queueing theory and almost works assumed that the service station consists of one server and the customers source is infinite. In this paper, we give a detailed qualitative and performance analysis of finite-source multiserver retrial systems with multiple and single vacations of servers or all station, using Generalized Stochastic Petri nets. We show how this high level stochastic model allows us to cope with the complexity of such systems involving the simultaneous presence of retrials and vacations, and how stationary performance indices can be expressed as a function of Petri net elements.
KeywordsMultiserver retrial systems Finite-source Vacation policies Generalized Stochastic Petri nets Modeling and Performance measures
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