To address the issue of signal transmission failure induced by beam distortion due to complex underwater turbu-lence and scattering environments in underwater visible light communication,this study employs a random phase screen method to simulate the underwater turbulence channel.Furthermore,wavefront shaping techniques are implemented at the transmitter end to facilitate long-distance focusing,while utilizing an adaptive phase recovery algorithm at the receiver end to regenerate the light spot.Discrete Multi-tone(DMT)signals are transmitted using bit-power loading technology on a 1.2 m underwater experimental platform,enabling the measurement of the correlation between received light power and data transmission rate.Based on these findings,the transmission rate of visible light signals in a 100 m turbulent environment is predicted.When compared to the results of wavefront shaping and adaptive phase recovery,the proposed approach signifi-cantly enhances the transmission rate of underwater visible light systems.
维普
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