Orthogonal Time-Frequency Multiplexing With 2D Hermitian Symmetry for Optical-Wireless Communications

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Tytuł:: Orthogonal Time-Frequency Multiplexing With 2D Hermitian Symmetry for Optical-Wireless Communications
Autorzy:: Jie Zhong
Ji Zhou
Weiping Liu
Jiayin Qin
Temat:: Orthogonal time-frequency multiplexing
2D hermitian symmetry
optical-wireless communications
Applied optics. Photonics
TA1501-1820
Optics. Light
QC350-467
Źródło:: IEEE Photonics Journal, Vol 12, Iss 2, Pp 1-10 (2020)
Wydawca:: IEEE, 2020.
Rok publikacji:: 2020
Kolekcja:: LCC:Applied optics. Photonics
LCC:Optics. Light
Typ dokumentu:: article
Opis pliku:: electronic resource
Język:: English
ISSN:: 1943-0655
Relacje:: https://ieeexplore.ieee.org/document/8988242/; https://doaj.org/toc/1943-0655
DOI:: 10.1109/JPHOT.2020.2972587
Dostęp URL:: https://doaj.org/article/45bb27d6680a40ff81614644d80b3994 Link otwiera się w nowym oknie
Numer akcesji:: edsdoj.45bb27d6680a40ff81614644d80b3994
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Orthogonal time-frequency-space (OTFS) modulation is a promising two-dimensional (2D) signal technique to tackle high mobility time-varying wireless channels. However, its good performance on time-frequency plane multiplexing for optical-wireless communications (OWC) has never been fully investigated. In this article, we take advantage of OTFS and propose a new orthogonal time-frequency multiplexing (OTFM) scheme for DC-biased OWC. We first design a 2D Hermitian symmetry in the DC-biased optical OTFM (DCO-OTFM) system to generate the real-valued signal. The bit error rate (BER) of a DCO-OTFM system is studied on the OWC channel. Numerical results demonstrate that the proposed scheme outperforms the conventional DC-biased optical orthogonal frequency division multiplexing scheme.

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