Experimental Demonstration of OFDM Visible Light Communications based on System-on-Chip

In this paper, a System-on-Chip (SoC) architecture for OFDM-based Visible Light Communication (VLC) is demonstrated. The VLC system is used only for downlink (one way communication). We developed the SoC on the Xilinx ZYNQ-7000 All Programmable SoC. In this research, we integrated the system by connecting IP cores to the ARM Cortex-A9 processor; hence the IP cores can be accessed from software running on the Linux operating system (Ubuntu 16.04 version). To evaluate our SoC architecture, we integrated the FPGA into the Analog Front-End (AFE) module. The results show that the average Bit Error Rate (BER) are as follows: 7.693 x 10(-5), 1.495x10(-3), and 6.578x10(-3) for BPSK, QPSK, and QAM-16 modulations respectively.