Abstract

The emerging visible light communication (VLC) technology, which has the advantages of short-distance communication and indoor lighting, has become a research hotspot of indoor wireless communication technology. Polar codes, as the only forward error correction (FEC) coding technology that has been theoretically proven to achieve Shannon's capabilities, are adopted to reduce the bit error rate (BER) in VLC systems. However, the individual polar codes are still unable to correct burst errors in VLC channels. This paper proposes concatenated polar codes with interleaving technology for VLC systems. The results show that it can effectively correct random errors and burst errors in VLC systems. Compared to the non-systematic polar codes, the systematic polar codes are more suitable as the inner code of the concatenated polar codes. The concatenated polar codes exhibit a lower error floor in VLC systems under burst errors than the individual polar codes. Compared with BCH-polar schemes, Convolutional-polar schemes have better robustness.

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