SIMULATION MODELING OF GPRS CHANNELS OPERATION IN AUTOMATED DISPATCH CONTROL SYSTEMS

Abstract

The article presents a study on the development of simulation models for GPRS channel operation within Automated Dispatch Control Systems (ADCS) for railway transport in Kazakhstan, including High-Speed Railway Transport (HSRWT). The research addresses the optimization of data transmission for navigation and movement coordination of rolling stock, emphasizing the use of mobile communication technologies such as GSM and GPRS. The study develops algorithms for predictive assessment of train location and traffic coordination while optimizing GPRS network resources. A queuing service system (QSS) approach is applied to model GPRS channels, taking into account priority traffic, channel loads, and service delays. Computational experiments conducted using a Delphi-based program demonstrate the adequacy of the developed simulation model, with deviations from experimental data not exceeding 7–9%. The proposed approach improves the efficiency of ADCS and enhances coordination of rolling stock movements. The results have practical significance for further modernization of railway transport systems in Kazakhstan, including the implementation of intelligent digital technologies for high-speed rail transport.