Datalink security in the L-band digital aeronautical communications system (LDACS) for air traffic management

Today's very high-frequency (VHF) voice-based air-ground communication system for tactical aircraft guidance is suffering from the VHF band's increasing saturation in high-density areas. The air-ground1 communication infrastructure is therefore undergoing modernization to ensure the sustainable growth of the European air transportation system in the coming decades. One major goal of this effort is the introduction of computerized air traffic management applications and new digital communication links between aircraft and ground systems.