KEYWORDS: Orthogonal frequency division multiplexing, Signal to noise ratio, Modulation, Digital signal processing, Computer simulations, Visible radiation, Light emitting diodes, Wireless communications, Telecommunications, Demodulation
In this paper, to mitigate frequency selective power fading induced by multipath effect, a clustering algorithm based on k-means is proposed for OFDM-VLC system. The simulation results show that, aided by the k-means clustering algorithm, the signal-to-noise ratio (SNR) is improved by more than 7 dB compared to the scheme without k-means clustering algorithm at BER of 3.8×10-3, the hard decision forward error correction (HD-FEC) limit.
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