Abstract
Visible Light Communication (VLC) using high power light emitting diodes (LEDs) for high speed communication becomes a new area which draws increasing attention. In this paper, we propose and experimentally demonstrate a high-speed VLC system based on Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-S OFDM) for the first time. We change the value of different factors and compare the performance of the system in order to find the effect of different factors. The experimental results show that the bit error rate (BER) for an overall 1.2Gb/s 64QAM and 32QAM signal over 40 cm transmission can be under the 7% forward error correction (FEC) limit of 3.8×10−3. Meanwhile, we clearly demonstrate the benefit and feasibility of DFT-S OFDM modulation format for the high speed VLC system.
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