Table 2.

Simulation parameters.

Parameter	Value	Parameter	Value
System clock	8 MHz	Time clock	32.768 KHz
Channel type	Rayleigh	Noise type	Gaussian
Clock offset	800 ms	Clock skew	10–80 PPM
SNR	15 dB	Carrier frequency	30 KHz
Communication range	1000 m	Depth of node	10–100 m
Doppler frequency shift	20 Hz	Doppler spread factor	0.3–0.8
Acoustic velocity	1430–1500 m/s	Node mobility	1–10 m/s
Cyclic prefix	51.2 ms	Multipath delay	40 ms
Threshold of energy	0.35	Threshold of BER	0.005