An Efficient Communication Scheme for Satellite Aerial Networks with Location Privacy

Since satellites can provide stable communication services to uncrewed aerial vehicles (UAVs), satellite aerial networks become an important part of the sixth generation (6 G) networks. The service of satellites relies on UAVs' location information, while actively real-time location information reporting of UAVs incurs large communication overhead and poses substantial security risks. Specifically, UAVs may be threatened by global navigation satellite system (GNSS) spoofing attacks, which is carried out by obtaining UAVs' location information. To meet these challenges, in this paper, we propose an overhead-efficient communication scheme for satellite aerial networks without requiring UAVs' location information reporting, which not only saves communication resources, but also offers resilience against GNSS attacks. The total average communication rate of the system is analyzed, and its analytical expression, based on the point beam radius and frequency modulation interval, is derived. Finally, simulation results demonstrate the sum of the transmission rates for multiple high-dynamic UAVs served by the satellite in various scenarios, as well as a performance comparison between the proposed and traditional methods under GNSS attack scenarios.