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VISIBLE LIGHT TRANSMISSION APPARATUS, VISIBLE LIGHT RECEPTION APPARATUS, AND VISIBLE LIGHT COMMUNICATION SYSTEM INCLUDING THE SAME CAPABLE OF SOLVING A POWER DECREASE PROBLEM
VISIBLE LIGHT TRANSMISSION APPARATUS, VISIBLE LIGHT RECEPTION APPARATUS, AND VISIBLE LIGHT COMMUNICATION SYSTEM INCLUDING THE SAME CAPABLE OF SOLVING A POWER DECREASE PROBLEM
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机译:可见光透射装置,可见光接收装置和可见光通信系统,包括解决功率下降问题的能力
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摘要
PURPOSE: A visible light transmission apparatus, visible light reception apparatus, and visible light communication system including the same are provided to improve BER(Basic Encoding Rule) performance by applying SC-FDMA(Single Carrier-Frequency Division Multiple Access) technology in a visible light communication system.;CONSTITUTION: A DFT(Discrete Fourier Transform) spreading unit(140) outputs DFT data by performing the DFT calculation of a second complex number value. A modulation unit(160) performs the IFFT(Inverse Fast Fourier Transform) calculation of the DFT data which is outputted from the DFT spreading unit. The modulation unit performs OFDM(Orthogonal Frequency Division Multiplexing) by outputting IFFT data. A WLED(White Light Emitting Diode)(180) transmits visible light corresponding to the IFFT data which is outputted from the OFDM modulation unit to outside.;COPYRIGHT KIPO 2012
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