1G	First generation
2G	Second generation
2.5G	2.5 generation
3G	Third generation
3GPP	3rd Generation Partnership Project
4G	Fourth generation
5G	Fifth generation
6G	Sixth generation
ACE	Active constellation extension
ACLR	Adjacent channel leakage ratio
AMPS	Advanced Mobile Phone System
ANN	Artificial neural network
AWGN	Additive white Gaussian noise
BatchNorm	Batch normalization
BER	Bit error rate
CCDF	Complementary cumulative distribution function
CP	Cyclic prefix
CL	Clipping level
DL	Deep learning
DCO-OFDM	DC-biased optical OFDM
DFT-S	Discrete Fourier transform spread
DNN	Deep neural network
DUN	Deep unfolding network
FC	Fully connected
FDM	Frequency division multiplexing
FDMA	Frequency division multiple access
FFNN	Feedforward neural network
FFT	Fast Fourier transform
GFDM	Generalized frequency division multiplexing
GSM	Global System for Mobile Communications
IBO	In-band outage
ICI	Inter-carrier interference
ICWEF	Inter-carrier waveform
IDFT	Inverse discrete Fourier transform
IFFT	Inverse fast Fourier transform
IoT	Internet of Things
IP	Internet Protocol
ISI	Inter-symbol interference
LACO-OFDM	Layered asymmetrically clipped OFDM
LED	Light-emitting diode
LSTM	Long short-term memory
LSTM-AE	LSTM autoencoder
MCTS	Monte Carlo tree search
MIMO	Multiple-input multiple-output
ML	Machine learning
mmWave	Millimeter wave
M-PTS	Monte Carlo PTS
NN	Neural network
NN-ACE	Neural network ACE
NMT	Nordic Mobile Telephone
OFDM	Orthogonal frequency division multiplexing
O-OFDM	Optical OFDM
PTS	Partial transmit sequence
PAPR	Peak-to-average-power ratio
PRnet	PAPR-reducing network
QAM	Quadrature amplitude modulation
QPSK	Quadrature phase shift keying
RANSAC	Random sample consensus
RDNN	Residual deep neural network
ReLU	Rectified linear unit
RF	Radio frequency
RL	Reinforcement learning
SLM	Selected mapping
SNR	Signal-to-noise ratio
SOM	Self-organized map
STR	Selective tone reservation
TACS	Total Access Communication System
TI	Tone injection
TR	Tone reservation
Tx	Transmit
TT-RDNN	Tensor-train residual deep neural network
TRNet	Tone reservation network
TV	Television
VLC	Visible light communication
VLC-OFDM	Visible light communication OFDM