A study on the effectiveness of threshold and traffic overflow mechanisms in multi-service switching networks with real-time and non-real-time traffic

Abstract

This article presents the results of a simulation study that examines the performance and the effectiveness of threshold mechanisms and traffic overflow mechanisms in multiservice switching networks. A threshold mechanism is used in the study to control those services that do not require data transmission in real time, i.e. the so-called elastic services. Traffic streams that are generated by these services (non-real-time traffic) can have variable transmission time dependent on available resources in the system. The traffic overflow mechanism is used, in turn, to guarantee the delivery of real-time traffic streams for which the amount of demanded resources cannot be reduced. The study confirms the effectiveness of the application of the proposed mechanisms in decreasing the call blocking probability in multi-service switching networks.