Visible Light Transmitter, Visible Light Receiver, Visible Light Communication System Thereof

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.