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Spectrally Augmented Hartley Transform Precoded Asymmetrically Clipped Optical OFDM for VLC

Abstract : In this letter, layered discrete Hartley transform (DHT)-spread asymmetrically clipped optical-orthogonal frequency division multiplexing (LDHTS-ACO-OFDM) is presented; it uses DHT for multiplexing/demultiplexing and pulse-amplitude modulation (PAM) alphabets. LDHTS-ACO-OFDM yields several concrete enhancements over classical layered asymmetrically clipped O-OFDM (LACO-OFDM), such as low peak-to-average power ratio (PAPR), lower computational complexity, improved bit error rate (BER), and lower optical power penalty in a dispersive channel. Besides, LDHTS-ACO-OFDM augments the spectral efficiency relative to DHTS-ACO-OFDM with each addition of layer and ousts the inefficient bandwidth utilization limitation of DHTS-ACO-OFDM.
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https://hal.archives-ouvertes.fr/hal-01954531
Contributor : Yannis Le Guennec Connect in order to contact the contributor
Submitted on : Thursday, December 13, 2018 - 4:43:42 PM
Last modification on : Wednesday, July 13, 2022 - 9:38:28 AM

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Ali Waqar Azim, Yannis Le Guennec, Ghislaine Maury. Spectrally Augmented Hartley Transform Precoded Asymmetrically Clipped Optical OFDM for VLC. IEEE Photonics Technology Letters, 2018, 30 (23), pp.2029-2032. ⟨10.1109/LPT.2018.2874962⟩. ⟨hal-01954531⟩

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