Retrial queueing systems represent a class of models in which arriving customers, upon encountering a busy or unavailable server, enter a virtual waiting room—commonly referred to as an orbit—to ...

Queueing theory and systems analysis serve as fundamental frameworks for modelling and understanding the dynamics of waiting lines, providing essential insights into the performance of a variety of ...

It is proved that, for a large class of stable stationary queueing systems with renewal arrival processes and without losses, a necessary condition for the departure process also to be a renewal ...

This is a preview. Log in through your library . Abstract It is well known that the stationary distribution of the number of busy servers in the Erlang blocking system (M/G/c/c) depends on the service ...