AWGN	Additive White Gaussian Noise
BER	Bit Error Rate
CIR	Channel Impulse Response
CFO	Carrier Frequency Offsets
CFR	Channel Frequency Response
CP	Cyclic Prefix
CSS	Chirp Spread Spectrum
DFnT	Discrete Fresnel Transform
EDR	Effective Data Rate
FDE	Frequency Domain Equalization
FFT	Fast Fourier Transform
FEC	Forward Error Correcting
EFR	Errorless Frame Ratio
IDFnT	Inverse Discrete Fresnel Transform
IFFT	Inverse Fast Fourier Transform
ICI	Inter-Carrier Interference
ISI	Inter-Symbol Interference
LLR	Logarithm Likelihood Ratio
LS	Least Square
MMSE	Minimum Mean Square Error
MSE	Mean Square Error
OCDM	Orthogonal Chirp Division Multiplexing
OFDM	Orthogonal Frequency Division Multiplexing
PER	Packet Error Ratio
PN	Pseudo-Noise
PSK	Phase-shift Keying
QAM	Quadrature Amplitude Modulation
QPSK	Quaternary Phase Shift Keying
RMS	Root Mean Square
SNR	Signal-to-Noise Ratio
UWAC	Underwater Acoustic Communication
TDE	Time Domain Equalization
TVIR	Time-Varying Impulse Response
SISO	Single-Input Single-Output
SIMO	Single-Input Multiple-Output
SC	Single-Carrier