Abstract
Abstract The purpose of this paper is to design an experimental system for underwater wireless optical communications (UWOC). By using an amplitude shift key (ASK), different frequencies in KHz are modulated over LED light. Four strategies are evaluated and compared (SISO, SIMO, MISO, and MIMO) with the purpose of determining the success of receiving optical signals. To receive these frequencies, a solar cell and photodiode (BPX61) are utilized. A digital storage oscilloscope (DSO) is used to view the received signal at the identical optical conditions. The results indicate that the system has a satisfactory link quality to receive frequencies when all four approaches are used in the same settings. The PD BPX61 is more efficient at receiving frequencies from the solar cell. The measurable frequency range of the received signals was 500 KHz for the PD BPX61 and 100 KHz for the solar cell. The (SISO) technique achieves the lowest SNR values, whereas the MIMO technique achieves the highest values.
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