Analysis of the successful and blocked events in the Geo/Geo/cGeo/Geo/c retrial queue

This paper considers a discrete-time queue of Geo/Geo/cGeo/Geo/c-type with geometric repeated attempts, Artalejo et al. (2008) [18]. We investigate the probability distributions, the first and second moments and the cross moments of the successful and blocked events made by the external and repeated customers. Several numerical examples and a cost function illustrate the analysis.