Abstract
Orthogonal frequency division multiplexing (OFDM) systems have inferior nonlinear performance due to their high peak to average power ratio (PAPR) characteristics, which degrades the performance in optical wireless communication systems. A modified asymmetrically clipped optical (ACO)-OFDM system with low PAPR by introducing a discrete sliding norm transform (DSNT) as low-complexity post-inverse discrete Fourier transform processing is proposed. Numerical results show that the proposed DSNT-ACO-OFDM achieves about 50% PAPR reduction, while maintaining a competitive bit error rate performance compared with the conventional schemes.
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