Rashid Hujijo, Hayder S.Ilyas, MuhammadQasim, Abdullah AliUllah, Ubaid2023-05-312023-05-312023Hujijo, H. S. R., Ilyas, M., Qasim, A. A., & Ullah, U. (2023). Certain investigation of filtered-OFDM in visible light communications system. In 2023 7th International Conference on Computing Methodologies and Communication (ICCMC) (pp. 1455-1459). IEEE.9781665464086https://hdl.handle.net/20.500.12939/3496Filtered-OFDM scheme recently considers a promising element for Visible Light Communication (VLC) systems. Converting the F-OFDM bipolar signal to a nonnegative signal and being compatible with the Intensity Modulation and Direct Detection (IM/DD) is a crucial issue for researchers. To achieve a unipolar signal, many techniques have been proposed. In this paper, a Direct Current-bias (DC-bias) technique is employed to acquire a signal unipolarity and evaluate the efficiency of the F-OFDM system. The simulation findings offer that when the DC bias increased, the peak-to-average-power ratio (PAPR) increased even when using different modulation orders. In contrast, comparing different modulation orders, F-OFDM shows better bit error rate (BER) performance, especially in low-order modulation schemes.eninfo:eu-repo/semantics/closedAccessBit Error RateDC-biasFiltered-OFDMPeak to Average Power RatioQAMVisible Light CommunicationConference Object145514592-s2.0-85153580224N/A