PAPR reduction of optical OFDM signals in visible light communications

PAPR reduction of optical OFDM signals in visible light communications

Orthogonal frequency division multiplexing (OFDM) is extensively used in optical communications to achieve high rate transmission. In this paper, Vandermonde like matrix (VLM) pre-coding approach is offered to reduce the high peak-to-average power ratio (PAPR) of DC-biased optical OFDM (DCO-OFDM) an...

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Main Author: Abbas Ali Sharifi
Format: Article
Language:English
Published: Elsevier 2019-09-01
Series:ICT Express
Online Access:http://www.sciencedirect.com/science/article/pii/S2405959518305897
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spelling doaj-b6da3c39350d40e3b84e8cb43f7cc19f2020-11-25T00:31:00ZengElsevierICT Express2405-95952019-09-0153202205PAPR reduction of optical OFDM signals in visible light communicationsAbbas Ali Sharifi0Department of Electrical Engineering, University of Bonab, Bonab, IranOrthogonal frequency division multiplexing (OFDM) is extensively used in optical communications to achieve high rate transmission. In this paper, Vandermonde like matrix (VLM) pre-coding approach is offered to reduce the high peak-to-average power ratio (PAPR) of DC-biased optical OFDM (DCO-OFDM) and asymmetrically clipped optical OFDM (ACO-OFDM) signals in visible light communications. The proposed method is compared with Walsh–Hadamard transform (WHT), discrete cosine transform (DCT), and discrete Hartley transform (DHT) pre-coding approaches in terms of PAPR reduction performance. Simulation results indicate that the proposed method effectively reduces the PAPR of an optical signal in both DCO-OFDM and ACO-OFDM techniques. Keywords: PAPR, VLM, DCO-OFDM, ACO-OFDMhttp://www.sciencedirect.com/science/article/pii/S2405959518305897
collection DOAJ
language English
format Article
sources DOAJ
author Abbas Ali Sharifi
spellingShingle Abbas Ali Sharifi
PAPR reduction of optical OFDM signals in visible light communications
ICT Express
author_facet Abbas Ali Sharifi
author_sort Abbas Ali Sharifi
title PAPR reduction of optical OFDM signals in visible light communications
title_short PAPR reduction of optical OFDM signals in visible light communications
title_full PAPR reduction of optical OFDM signals in visible light communications
title_fullStr PAPR reduction of optical OFDM signals in visible light communications
title_full_unstemmed PAPR reduction of optical OFDM signals in visible light communications
title_sort papr reduction of optical ofdm signals in visible light communications
publisher Elsevier
series ICT Express
issn 2405-9595
publishDate 2019-09-01
description Orthogonal frequency division multiplexing (OFDM) is extensively used in optical communications to achieve high rate transmission. In this paper, Vandermonde like matrix (VLM) pre-coding approach is offered to reduce the high peak-to-average power ratio (PAPR) of DC-biased optical OFDM (DCO-OFDM) and asymmetrically clipped optical OFDM (ACO-OFDM) signals in visible light communications. The proposed method is compared with Walsh–Hadamard transform (WHT), discrete cosine transform (DCT), and discrete Hartley transform (DHT) pre-coding approaches in terms of PAPR reduction performance. Simulation results indicate that the proposed method effectively reduces the PAPR of an optical signal in both DCO-OFDM and ACO-OFDM techniques. Keywords: PAPR, VLM, DCO-OFDM, ACO-OFDM
url http://www.sciencedirect.com/science/article/pii/S2405959518305897
work_keys_str_mv AT abbasalisharifi paprreductionofopticalofdmsignalsinvisiblelightcommunications
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