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In our works. we set up a model of solar cell VLC system which was simulated in Matlab Simulink. We had verified the correction of the model and gave reasonable design to optimize the system. The energy gathering and signals detecting system was demonstrated. The data rate of it is 19200 bps. The DC voltage of photocell was about 2.77 V which is enough for low voltage power supply circuits. The AC voltage of photocell was about 410 mV and could be optimized by one stage amplifier circuit. It was proved that solar cell can act as energy converting and detecting device simultaneously in VLC system. The channel influences [6]. response of solar cell to frequency. room lighting conditions. and other factors were ignored in our model. Further studies can take these factors into consideration. At the same time. we will optimize the design for the actual application.
