Small Remotely Piloted Aircrafts (RPAs) are gaining an increasingly prominent role in society. However, their growing use has raised concerns due to their potential misuse for illicit activities.

Abstract: This paper presents studies of the effect of the Doppler frequency shift on the satellite link availability when regular smartphones are used as user equipment. The studies evaluated the NTN ...

Abstract: Reliable connectivity for Internet of Things (IoT) in remote regions remains a challenging issue due to the rapidly varying Doppler shifts inherent in low Earth orbit (LEO) satellite systems ...