Modelling overflow systems with distributed secondary resources

This article presents, in short, the state of the art of modelling overflow systems and proposes a new method for a determination of characteristics of multi-service overflow systems with elastic traffic and with distributed secondary resources. A particular attention is given to the method for a determination of the parameters of multi-service traffic that overflows to secondary resources and the method for modelling of these resources that takes into consideration both the structure of the distributed resources, elastic traffic management-handling mechanisms and the level of peakedness degeneration of overflow traffic. The results of the analytical calculations are compared with the results of the simulation experiments of a number of selected structures of overflow systems with distributed secondary resources. The results of the study have confirmed and verified the correctness of all the theoretical assumptions adopted throughout the article.