Comparison of Asymmetrically Clipped Optical OFDM and DC-Biased Optical OFDM in AWGN

By Jean Armstrong, Brendon J. C. Schmidt. IEEE Communications Letters, 2008

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LED Based Indoor Visible Light Communications: State of the Art (2015, methodology): “The method reduces the amplitude of the transmitted OFDM signal and is far more power efficient than DC biased OFDM for a given bandwidth, although coming at the cost of losing half the available bandwidth [162].”
OFDM for Optical Communications (2009, background): “In [34] it was shown that except for extremely large constellations ACO-OFDM requires a lower average optical power for a given BER and data rate than DCO-OFDM.”
Indoor Positioning Systems Based on Visible Light Communication: State of the Art (2017, background): “OFDM) [56], DC-biased Optical OFDM (DCO-OFDM) [57] and Asymmetrically clipped DC-biased Optical OFDM (ADOOFDM) [58].”
Comparison of ACO-OFDM, DCO-OFDM and ADO-OFDM in IM/DD Systems (2013, background): “Following [5] and [2], the modulation bandwidth is defined as the position of the first spectral null.”
Clipping Noise in OFDM-Based Optical Wireless Communication Systems (2012, methodology): “It is shown that the existing simulation results from [8] for an ideal biasing scenario underestimate the BER performance of ACO-OFDM and DCO-OFDM in a biasing setup with a clipping distortion.”
PAM-DMT for Intensity-Modulated and Direct-Detection Optical Communication Systems (2009, methodology): “In [5], it was shown that ACO-OFDM can offer better performance than dc-biased DMT by modulating only the”