Distributed ecosystem of voice communications for air traffic control system

Abstract One of the critical elements of air traffic control (ATC) systems is the ground-to-air voice communications system. The work of ATC dispatchers is provided by main and standby radios. Each radio station is a monoblock that performs all the functions of radio communication. Modern radios have a modular structure. Their architecture consists of structurally independent modules. With such architecture, redundancy of radios can be carried out not at the level of the device as a whole, but at the level of its individual modules. In this case, the communication ecosystem takes the form of a cyber-physical environment. The homogeneous modules of all radio stations form a multi-level cloud system. By connecting modules of various levels, a virtual radio station is formed during communication session. The channel reliability of the communication system for two architectures of connecting redundant modules in a virtual environment providing ground-to-air ATC voice radio communication is considered: structure with individual switch for each standby module of the group, and structure with common switch for all standby modules of the group. The conditions for choosing the most effective of the considered architectures ac-cording to the reliability criterion are determined.