An Acoustic OFDM System with Symbol-by-Symbol Doppler Compensation for Underwater Communication

Table 1

Our system parameters.

Parameters	Value
TX-RX elements	1 TX/4 RX transducer
Sampling frequency	96000 Hz
TX center frequency	24000 Hz
Band width	7593 Hz
FFT size	1024
OFDM symbol length  excluded GI	10.67 ms
GI length	0.5
Sub carrier spacing	93.75 Hz
Number of subcarrier	81
Modulation	16QAM	64QAM
Turbo code rate	1/2	1/3
Space among transducers at RX side	10 cm