A Finite Source Retrial Queue: Number of Retrials
We consider a single-server queuing system with a finite number of sources, where customers are not allowed to queue; instead of that, they make repeated attempts, or retrials, in order to enter service after some time. This queuing system and its variants are widely used to model disk memory systems, star-like local area networks, and other communication systems. The article extends previous works on this topic and deals with the number of retrials, produced by a tagged customer, until he finds the server available. An algorithm for determination of all moments of this number is obtained, and the results of numerical experiments are presented.