An Air Traffic Management Data Traffic Pattern for Aeronautical Communication System Evaluations
2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)
Modern air traffic management relies on a communication infrastructure increasingly suffering from the VHF band's growing saturation in high density areas. Air traffic management communication shall therefore transition from analog VHF voice communication to more spectrum efficient digital data communication. These proposed digital technologies have to be evaluated carefully against the expected data traffic to ascertain that they offer the required capacity and performance. This paper
... This paper describes the characteristics of air traffic management data and a method to generate a data traffic pattern suitable as input for the performance evaluation of digital aeronautical data communication systems. The data traffic pattern is derived from large scale computer simulations. Based on the simulation results, the paper provides guidance on how to model a data traffic pattern that is directly usable for practitioners wishing to evaluate the performance of aeronautical data communication systems. Keywords-computer simulation; air traffic management; aeronautical communication. System (LDACS)  conducted in the MICONAV  project. The main objective of this development was to (1) define a data traffic pattern that is suitable to provide meaningful insight into the expected performance of LDACS and (2) practical to implement in flight trials. A key problem when conducting flight trials of an aeronautical communication system is that one cannot rely on the communication system under test e.g. if one implements the measurement data traffic pattern as a true dialogue, where the answer to a message is triggered by a received message, a lost message may stop the measurement entirely. Thus we identified the following requirements: • The data traffic pattern should be robust against partial communication failures: Lost messages should not cause the measurement to stop. • The data traffic pattern should be implementable in a distributed environment with no or unreliable communication channels for coordination.