Regarding a Pre-Distorted ADO-OFDM System as a DCO-OFDM System for Visible Light Communications

We provide an interpretation for a recently proposed pre-distorted asymmetrically clipped DC-biased optical orthogonal frequency division multiplexing (ADO-OFDM) system. Through our derivation, we find that the predistorted ADO-OFDM system can be regarded as a direct current biased optical OFDM (DCO...

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Autores principales:	Shih-Kai Lee, Ting-Yao Chen, Chien-Cheng Lee
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Adaptive modulation channel side information DCO-OFDM polar coding pre-distorted ADO-OFDM Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/fa37a98c31ac47a6bdcd3e18763973d4
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spelling	oai:doaj.org-article:fa37a98c31ac47a6bdcd3e18763973d42021-11-25T00:00:35ZRegarding a Pre-Distorted ADO-OFDM System as a DCO-OFDM System for Visible Light Communications2169-353610.1109/ACCESS.2021.3128185https://doaj.org/article/fa37a98c31ac47a6bdcd3e18763973d42021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9615056/https://doaj.org/toc/2169-3536We provide an interpretation for a recently proposed pre-distorted asymmetrically clipped DC-biased optical orthogonal frequency division multiplexing (ADO-OFDM) system. Through our derivation, we find that the predistorted ADO-OFDM system can be regarded as a direct current biased optical OFDM (DCO-OFDM) system in which the odd-index and the even-index subcarriers are based on different power assignments. For multipath channels that have no channel side information (CSI), the mechanism for power allocation and adaptive modulation is impractical. Using state-of-the-art polar coding that includes an interleaver is appropriate to combat such a situation. The performance comparison between an interleaved polar coded ADO-OFDM system both with and without pre-distortion are simulated and concluded.Shih-Kai LeeTing-Yao ChenChien-Cheng LeeIEEEarticleAdaptive modulationchannel side informationDCO-OFDMpolar codingpre-distorted ADO-OFDMElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 154651-154658 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Adaptive modulation channel side information DCO-OFDM polar coding pre-distorted ADO-OFDM Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Adaptive modulation channel side information DCO-OFDM polar coding pre-distorted ADO-OFDM Electrical engineering. Electronics. Nuclear engineering TK1-9971 Shih-Kai Lee Ting-Yao Chen Chien-Cheng Lee Regarding a Pre-Distorted ADO-OFDM System as a DCO-OFDM System for Visible Light Communications
description	We provide an interpretation for a recently proposed pre-distorted asymmetrically clipped DC-biased optical orthogonal frequency division multiplexing (ADO-OFDM) system. Through our derivation, we find that the predistorted ADO-OFDM system can be regarded as a direct current biased optical OFDM (DCO-OFDM) system in which the odd-index and the even-index subcarriers are based on different power assignments. For multipath channels that have no channel side information (CSI), the mechanism for power allocation and adaptive modulation is impractical. Using state-of-the-art polar coding that includes an interleaver is appropriate to combat such a situation. The performance comparison between an interleaved polar coded ADO-OFDM system both with and without pre-distortion are simulated and concluded.
format	article
author	Shih-Kai Lee Ting-Yao Chen Chien-Cheng Lee
author_facet	Shih-Kai Lee Ting-Yao Chen Chien-Cheng Lee
author_sort	Shih-Kai Lee
title	Regarding a Pre-Distorted ADO-OFDM System as a DCO-OFDM System for Visible Light Communications
title_short	Regarding a Pre-Distorted ADO-OFDM System as a DCO-OFDM System for Visible Light Communications
title_full	Regarding a Pre-Distorted ADO-OFDM System as a DCO-OFDM System for Visible Light Communications
title_fullStr	Regarding a Pre-Distorted ADO-OFDM System as a DCO-OFDM System for Visible Light Communications
title_full_unstemmed	Regarding a Pre-Distorted ADO-OFDM System as a DCO-OFDM System for Visible Light Communications
title_sort	regarding a pre-distorted ado-ofdm system as a dco-ofdm system for visible light communications
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/fa37a98c31ac47a6bdcd3e18763973d4
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Regarding a Pre-Distorted ADO-OFDM System as a DCO-OFDM System for Visible Light Communications

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