FPGA implementation of Reed-Solomon Codes Based on Visible Light Wireless Communication System

摘要

The research of visible light communications (VLC) has became a focus of wireless communications in recent years. In this paper, the channel coding technique for VLC systems were studied. According to the characteristics of VLC channel, RS codes were designed to correct the burst and random errors. The pipeline architecture was designed in the proposed system, and the RS decoder was divided into 4 modules, the syndrome calculation module, the key equation calculation module, the Chein Search module and the Forney algorithm module. In the Chein search module, the RiBM algorithm was used for reduction of complexity. All FPGA implementations of the 4 modules were provided in detail, and simulation results were shown on the Quartus II 9.0 platform. The simulation results show that, no more than 8 random and burst errors can be completely correct by one single proposed RS (204,188) codeword.