Multilayered optical orthogonal frequency division multiplexing with offset quadrature amplitude modulation for visible light communication systems
Fengyuan Shi,
Ping Wang,
Hetong Wang
et al.
Abstract:.A multilayered optical orthogonal frequency division multiplexing with offset quadrature amplitude modulation (LO-OFDM/OQAM) scheme is proposed for visible light communication (VLC) systems, which is inspired by the enhance optical OFDM/OQAM (EO-OFDM/OQAM) scheme. In this scheme, multiple layers of data are superimposed on the normal branch to further improve the spectral efficiency and power efficiency of the VLC systems. Specifically, the negative time-domain signals on each layer can be directly clipped as… Show more
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