Kepezkaya, TalatOzen, Ali2025-03-172025-03-172023979-8-3503-4355-72165-0608https://doi.org/10.1109/SIU59756.2023.10223832https://hdl.handle.net/20.500.13099/179731st IEEE Conference on Signal Processing and Communications Applications (SIU) -- JUL 05-08, 2023--AG289 Istanbul Tech Univ, Ayazaga Campus, Istanbul, TURKEYAs a solution to the energy inefficiency problem of DC biased optical OFDM (DCO-OFDM) waveform, one of the optical OFDM (O-FDM) waveforms developed for new generation optical wireless communication systems, DC bias-free DCO-OFDM (DC Biasless O-OFDM) waveform is suggested by this study. The proposed waveform is compared with DCO-OFDM, NDC-O-OFDM and ACO-OFDM waveforms in AWGN and flat optic LOS channel environments over the BER-SNR and SE-SNR performance criteria. From the acquired performances, it is perceived that the recommended DC Biasless O-OFDM waveform gives an SNR gain of approximately 8 to 13 dB at 1E-4 BER value without sacrificing the spectral efficiency.trinfo:eu-repo/semantics/closedAccessDCO-OFDMenergy efficiencyspectral efficiencyDC Biasless O-OFDMwaveform designConference Object10.1109/SIU59756.2023.10223832N/AWOS:0010625710000792-s2.0-85173481830N/A