In this paper, we investigate the fuzzy logic based system characteristics of M/G/1 retrial queuing system with Bernoulli vacation schedule. The service time and vacation time are assumed to be generally distributed. It is found in many practical situations that the queuing models with fuzzy parameters are much more realistic than the classical crisp parameters based queuing models. We have cho...

In the literature, retrial queues with batch arrivals and heavy-tailed service times have been studied so-called equivalence theorem has established under condition that time is heavier than size. The provides distribution (or tail) between total number of customers in system for queue corresponding standard (non-retrial) queue. this paper, assumption regularly varying tails, we eliminate by al...

This paper describes a discrete-time retrial queue and shows how importance sampling simulations can be applied for estimating the probability of large orbit content and the overflow fraction of primary calls.

We consider a single-server retrial queueing system with a finite number of homogeneous sources generating requests after a random time. The service of an arriving customer finding the server idle starts immediately; otherwise the request enters into an orbit from where the calls are repeated after a random time. Upon completion of a service, with a certain probability the server searches for a...

ABSTRACT In this paper, we represent the classical Engset-loss model by the congestion process of the system, and establish a fluid limit result for all the possible values of the various parameters. We extend this result to particular cases of finite-source retrial queues. We finally complete this study by presenting several fluid limits for additive functionals of the processes under consider...