Hinrichs, MalteMalteHinrichsCosta, WesleyWesleyCostaRocha, HelderHelderRochaPontes, MariaMariaPontesSegatto, MarceloMarceloSegattoParaskevopoulos, AnagnostisAnagnostisParaskevopoulosJungnickel, VolkerVolkerJungnickelFreund, RonaldRonaldFreundSilva, JairJairSilva2024-01-192024-01-192023https://publica.fraunhofer.de/handle/publica/45908210.1109/SACVLC59022.2023.103475402-s2.0-85182023986In this paper, we experimentally compare orthogonal frequency-division multiplexing (OFDM) and on-off keying (OOK) modulation in the context of the IEEE 802.15.13-2023 standard at bandwidths up to 50 MHz across a Li-Fi link with distances up to 5 m and a lateral offset up to 51°. Error vector magnitude (EVM) and bit error rate (BER) evaluations confirm that the high peak-to-average power ratio (PAPR) of OFDM limits the achievable transmission distance, but it offers higher data rates due to its higher spectral efficiency. Due to the lower PAPR, OOK-based Pulsed Modulation PHY (PM-PHY) shows a significantly higher link range. As the structure of the PM-PHY is based on OFDM symbols, the two solutions may also be combined to open a wider range of use cases for optical wireless communications.enOFDMOptical Wireless CommunicationsPulsed Modulationconference paper