Estimation of time characteristics of systems with network topology and stochastic processes of functioning

The article describes the proposed approach to modeling stochastic processes of the boundary layer of complex systems with a network topology, based on the methods of queuing theory. Based on the developed models, algorithms for calculating the estimates of the main temporal characteristics of the functioning quality of the analyzed processes are built. To test the proposed models, methods and algorithms, a structure has been developed and a computational experiment has been conducted to assess the quality of service requirements in telecommunications networks of the NGN concept, which are a typical modern example of complex systems with network topology and stochastic processes of operation (data flow service). (paper)