5G	Fifth Generation
6G	Sixth Generation
A2G	Air-to-Ground
ANN	Artificial Neural Network
AWGN	Additive White Gaussian Noise
B5G	Beyond 5G
D2D	Device-to-Device
DDPG	Deep Deterministic Policy Gradient
eICIC	Enhanced Inter-Cell Interference Coordination
FD	Full-Duplex
FSL	Free Space Pathloss
GD	Gradient Descent
GMT	Ground Mobile Terminal
HetNet	Heterogeneous Network
IoT	Internet of Things
KPI	Key Performance Indicator
LoS	Line of Sight
LTE	Long Term Evolution
MDQN	Mutual Deep Q-Network
MEA-DP	k-Means Deployment Process
MED-DP	k-Medoids Deployment Process
MIMO	Multiple-Input Multiple Output
ML	Machine Learning
MLP	Multi-Layer Perceptron
NLoS	Non Line of Sight
NOMA	Non-Orthogonal Multiple Access
OMA	Orthogonal Multiple Access
PSS	Placement Scheme Selection
QoS	Quality-of-Service
QSM	Quadrature Spatial Modulation
RF	Radio Frequency
SC	Superposition Coding
SIC	Successive Interference Cancellation
TBS	Terrestrial Base station
UAV	Unmanned Aerial Vehicle
UFBS	UAV Flying Base Station