Rakhmangulov A.N., Mirsagdiev O.A. A simulation model of quality assessment of voice transmission in operational and technological networks in railway transport

Abstract

This article describes a composition and structure of a simulation model of voice transmission in operational and technological networks in railway transport. The simulation model was built using a system dynamics approach to simulation modeling and implemented with simulation programming software AnyLogic. The basis of the developed simulation model is “E- model” of the voice transmission quality calculation (“R-factor”), modified for the conditions specific to operational and technological communication networks in railway transport. The proposed simulation model allows for a rapid assessment and prediction of the speech quality in networks of different types, configurations, structures, as well as in case of changes in external conditions.

Keywords

Voice transmission quality, R-factor, E-model, MOS-assessment, operational and technological networks, railway transport, simulation modeling, system dynamics, AnyLogic.

Rakhmangulov Alexander Nelievich – D.Sc (Eng.), Professor, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. Tel.: +7(3519) 29-85-16. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Mirsagdiev Orifzhon Alimovich – Lecturer of the Electrical Communication and Radio Department, Tashkent Institute of Railway Transport Engineers, Tashkent, Uzbekistan. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

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