Abstract. Results of research on development of an analytical model of data transmission algorithm that implements temporary access to a radio network resource and technologies for the formation of wide-band signal-code structures are presented. The application of a unified information distributed system with temporary access separation in the context of the use of radio channels for the transmission of packet data is described. A method of estimating the noise immunity of a radio line is considered based on obtained analytical functions that allow for a probabilistic assessment of the correct reception of a sent message in a pre-nondeterministic data transmission environment with a variable level of interference. The perspectives of using the developed analytical models to build promising data transmission systems based on radio are postulated. The possibility of application of obtained results in simulation modeling to solve the problem of providing the necessary level of broadband communication is analyzed.

Keywords: radio data exchange network, multiple access, time-sharing of the network resource, radio link immunity, analytical model, calculation method

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