Preface This report gives an overview of the queueing problems addressed in the COST 257 action on " Impacts of new services on the architecture and performance of broadband networks ". Typically, these problems arise in modelling the behavior of the queues appearing in multiplexers, traffic shapers, resequencing units or at the output ports of switching elements. In the report, the evident dis...

This paper deals with the study of multi-server queueing model in a fuzzy environment imposition reneging customers. Entry customers system is assumed to be Poisson process and exponential service time distribution under first-come-first-served basis. Specific this investigation derive various performance measures such as queue length, waiting queue, response optimal number servers explicit for...

Queueing Petri nets are a powerful formalism that can be exploited for modeling distributed systems and analyzing their performance and scalability. By combining the modeling power and expressiveness of queueing networks and stochastic Petri nets, queueing Petri nets provide a number of advantages. In this paper, we present our tool QPME (Queueing Petri net Modeling Environment) for modeling an...