UAV	Unmanned aerial vehicles
BS	Base station
LoS	Line-of-sight
NLoS	Non-line-of-sight
HAP	High altitude platform
LEO	Low earth orbit
A2G	Air-to-ground
QoS	Quality of service
SNR	Signal-to-noise ratio
PSO	Particle swarm optimization
D2D	Device-to-device
NOMA	Non-orthogonal multiple access
BLLL	Binary log-linear learning algorithm
RIS	Reflective intelligent surfaces
UE	User equipment