Articles with "dft precoding" as a keyword



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Precoded OVSB-OFDM transmission system using DML with Kramers-Kronig receiver

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Published in 2021 at "Optical Fiber Technology"

DOI: 10.1016/j.yofte.2021.102523

Abstract: Abstract Different from the use of IQ modulator or a dual-drive Mach-Zehnder modulator, we investigate an optical vestigial sideband orthogonal frequency division multiplexing (OVSB-OFDM) transmission system using a low-cost directly modulated laser. Precoding techniques and… read more here.

Keywords: ofdm transmission; ovsb ofdm; transmission system; dft precoding ... See more keywords
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Underwater optical wireless communication performance enhancement using 4D 8PAM trellis-coded modulation OFDM with DFT precoding.

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Published in 2022 at "Applied optics"

DOI: 10.1364/ao.453153

Abstract: A 4D 8-pulse amplitude modulation trellis-coded modulation-based orthogonal frequency division multiplexing (4D 8PAM TCM-OFDM) scheme combined with discrete Fourier transform (DFT) precoding is proposed and experimentally demonstrated in an underwater optical wireless communications system. It… read more here.

Keywords: modulation; trellis coded; dft precoding; ofdm scheme ... See more keywords