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Abstract
Constrained by the imaging mechanisms of cameras, the data transmission rate in optical camera communication (OCC) is considerably lower than that in traditional visible light communication (VLC). This Letter introduces a new, to the best of our knowledge, binary modulation scheme designed to increase OCC transmission rates, with the transmitter performing high-order modulation across frequency and phase dimensions and the receiver employing a frequency-domain demodulation approach. This proposed scheme exhibits better scalability and lower implementation complexity than existing schemes. Additionally, the influence of exposure time and readout time parameters of rolling shutter cameras on communication performance has been dissected and confirmed through numerical simulations and experimental validation, laying a theoretical foundation for the design and optimization of the OCC system.
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