Dynamic Reconfiguration of Architecture in the Communication Network of Air Traffic Management System

Communication between air traffic controllers and pilots remains a vital part of air traffic control operations, and communication problems can result in hazardous situations. The modern Air Traffic Management (ATM) system has independent direct communication channels (CC) for each controllers operating at different radio frequencies. Currently, the main method of improving the reliability of controller's CC is redundancy of equipment to provide communications on each frequency of interaction ground-to-air channel. The fault tolerance of such method is limited by number of redundancy elements. ATM communication network has periodical sessions of communications with relatively short active periods of communication interactions alternate with relatively long pauses in the translation of signals. The resilience of such network can be improved by dynamic architecture reconfiguration of communication equipment for operation in different channels during communication sessions. In paper the reliability of Air Traffic Management voice communication network with periodical sessions of communications for real conditions of ATM and with different strategies of reconfiguration for set of radio stations is investigated. Mathematical model of the channel reliability is developed. Comparative analysis of reliability for proposed strategies of ATM communication network reconfiguration is performed.