Zobrazeno 1 - 10
of 468
pro vyhledávání: '"DCO-OFDM"'
Publikováno v:
Photonics, Vol 11, Iss 8, p 781 (2024)
End-to-end systems have been introduced to address the issue of independent signal processing module design in traditional communication systems, which prevents achieving global system optimization. However, research on indoor end-to-end Visible Ligh
Externí odkaz:
https://doaj.org/article/3d44ea327dbf4feeb6e5b59dd8ef9a27
Publikováno v:
Photonics, Vol 11, Iss 7, p 643 (2024)
This paper presents an analytical study of signal clipping that leads to the noise/distortion in the waveform of DC-biased optical orthogonal frequency division multiplexing (DCO-OFDM)-based visible light communication (VLC) systems. The pilot-assist
Externí odkaz:
https://doaj.org/article/efe35079ffb34020a120047ea6ef8263
Autor:
Wei-Wen Hu
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 6, Pp 1-9 (2023)
This paper proposes an energy-efficient asymmetrically clipped direct-current (DC) biased optical orthogonal frequency division multiplexing (EEADO-OFDM) scheme, which replaces the fixed DC bias of DC biased optical OFDM (DCO-OFDM) branch with a adap
Externí odkaz:
https://doaj.org/article/18a555961b184612aa5eb705068c2c2a
Autor:
Wei-Wen Hu
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 6, Pp 1-7 (2023)
Compared to the direct current (DC) biased optical OFDM (DCO-OFDM) and asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) schemes, the asymmetrically clipped DC biased optical OFDM (ADO-OFDM) has demonstrated a bette
Externí odkaz:
https://doaj.org/article/5afb494d5bb94d6a99d6435e1e8536b8
Publikováno v:
ICT Express, Vol 8, Iss 3, Pp 414-418 (2022)
This work addresses the timing synchronization aspects in a DC-biased optical OFDM (DCO-OFDM) system which is exploiting real trigonometric transform like discrete sine transform (DST). The striking notability is that without the necessity of Hermiti
Externí odkaz:
https://doaj.org/article/c2acc17115cd48db88ff872d2bcbdf5a
Akademický článek
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Akademický článek
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Publikováno v:
IEEE Access, Vol 10, Pp 67925-67939 (2022)
Visible Light Communications (VLC) are receiving increased attention in the wireless communications research community. VLC is secured, power efficient, and operates in the visible light range, thus RF communication bandwidth limitation is overcome.
Externí odkaz:
https://doaj.org/article/de616ef095be442c9b6482dfcc0ad684
Publikováno v:
IEEE Access, Vol 10, Pp 1706-1713 (2022)
Efficient utilization of the spectrum, increased resilience to inter-symbol interference (ISI) and simpler channel equalization are becoming important considerations in the design of wireless communication systems including visible light communicatio
Externí odkaz:
https://doaj.org/article/03c5fb82692448718c63b1a206049c65
Publikováno v:
IEEE Access, Vol 10, Pp 17400-17416 (2022)
Seamless light fidelity (LiFi) communications in a realistic indoor environment faces a number of important challenges including the loss of line-of-sight (LOS) link due to the random orientation of mobile devices or blockage by users or furniture in
Externí odkaz:
https://doaj.org/article/e7e47a42a85843edbe57da59cc8851e1