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Low complexity of optical filter bank multi-carrier (FBMC) modulation for visible light communication using laser diode

DC-bias Optical Filter Bank Multi-carrier (DCO-FBMC) was used as a modulation technology compatible with Intensity Modulation/Direct Detection (IM/DD) that will provide a high data rate for visible light communication (VLC). The DCO-FBMC modulation is one of the most effective modulation techniques,...

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Main Author: Qasim, Abdullah Ali
Format: Thesis
Language:English
English
English
Published: 2022
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.uthm.edu.my/8375/1/24p%20ABDULLAH%20ALI%20QASIM.pdf
http://eprints.uthm.edu.my/8375/2/ABDULLAH%20ALI%20QASIM%20COPYRIGHT%20DECLARATION.pdf
http://eprints.uthm.edu.my/8375/3/ABDULLAH%20ALI%20QASIM%20WATERMARK.pdf
http://eprints.uthm.edu.my/8375/
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spelling my.uthm.eprints.83752023-02-23T06:26:18Z http://eprints.uthm.edu.my/8375/ Low complexity of optical filter bank multi-carrier (FBMC) modulation for visible light communication using laser diode Qasim, Abdullah Ali TK Electrical engineering. Electronics Nuclear engineering DC-bias Optical Filter Bank Multi-carrier (DCO-FBMC) was used as a modulation technology compatible with Intensity Modulation/Direct Detection (IM/DD) that will provide a high data rate for visible light communication (VLC). The DCO-FBMC modulation is one of the most effective modulation techniques, but power consumption is the obstacle facing the current development. The FBMC modulation deals with Hermitian Symmetry to generate a real signal, which leads to higher power consumption. As well modelling the distribution of luminaires in VLC is challenging in terms of dark spots (especially in the middle and at the edges of the room), besides higher power consumption. Therefore, problem of using Hermitian symmetry was addressed using the complex signal out of the traditional FBMC modulation in the time domain by separating the signal’s real part from the complex signal. As a result, the real and imaginary parts are aligned, thus gaining a real FBMC signal. This proposed technique reduces complexity by 57%, leading to a reduction in power consumption. In addition, a unipolar technique was also proposed to treat the power consumption resulting from the use of DC bias, called Flip-FBMC. This method separates the positive part of the real FBMC signal from the negative part and then inverting and merging it with the positive part. Thus, a unipolar signal is obtained without using DC bias. To address the problem of illumination distribution, a laser diode (LD) was used in two proposed scenarios, where scenario 2 was designed using five luminaires, while scenario 3 was designed with 13 luminaires using the optical FBMC modulation technique. The optimal semi-angle and FOV for each scenario improved the illumination distribution, power and SNR distribution. As a result, the power consumption was reduced by 13.1944% for scenario 2 and 18.75% for scenario 3, respectively, compared to the previous scenarios. 2022-08 Thesis NonPeerReviewed text en http://eprints.uthm.edu.my/8375/1/24p%20ABDULLAH%20ALI%20QASIM.pdf text en http://eprints.uthm.edu.my/8375/2/ABDULLAH%20ALI%20QASIM%20COPYRIGHT%20DECLARATION.pdf text en http://eprints.uthm.edu.my/8375/3/ABDULLAH%20ALI%20QASIM%20WATERMARK.pdf Qasim, Abdullah Ali (2022) Low complexity of optical filter bank multi-carrier (FBMC) modulation for visible light communication using laser diode. Doctoral thesis, Universiti Tun Hussein Onn Malaysia.
institution Universiti Tun Hussein Onn Malaysia
building UTHM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tun Hussein Onn Malaysia
content_source UTHM Institutional Repository
url_provider http://eprints.uthm.edu.my/
language English
English
English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Qasim, Abdullah Ali
Low complexity of optical filter bank multi-carrier (FBMC) modulation for visible light communication using laser diode
description DC-bias Optical Filter Bank Multi-carrier (DCO-FBMC) was used as a modulation technology compatible with Intensity Modulation/Direct Detection (IM/DD) that will provide a high data rate for visible light communication (VLC). The DCO-FBMC modulation is one of the most effective modulation techniques, but power consumption is the obstacle facing the current development. The FBMC modulation deals with Hermitian Symmetry to generate a real signal, which leads to higher power consumption. As well modelling the distribution of luminaires in VLC is challenging in terms of dark spots (especially in the middle and at the edges of the room), besides higher power consumption. Therefore, problem of using Hermitian symmetry was addressed using the complex signal out of the traditional FBMC modulation in the time domain by separating the signal’s real part from the complex signal. As a result, the real and imaginary parts are aligned, thus gaining a real FBMC signal. This proposed technique reduces complexity by 57%, leading to a reduction in power consumption. In addition, a unipolar technique was also proposed to treat the power consumption resulting from the use of DC bias, called Flip-FBMC. This method separates the positive part of the real FBMC signal from the negative part and then inverting and merging it with the positive part. Thus, a unipolar signal is obtained without using DC bias. To address the problem of illumination distribution, a laser diode (LD) was used in two proposed scenarios, where scenario 2 was designed using five luminaires, while scenario 3 was designed with 13 luminaires using the optical FBMC modulation technique. The optimal semi-angle and FOV for each scenario improved the illumination distribution, power and SNR distribution. As a result, the power consumption was reduced by 13.1944% for scenario 2 and 18.75% for scenario 3, respectively, compared to the previous scenarios.
format Thesis
author Qasim, Abdullah Ali
author_facet Qasim, Abdullah Ali
author_sort Qasim, Abdullah Ali
title Low complexity of optical filter bank multi-carrier (FBMC) modulation for visible light communication using laser diode
title_short Low complexity of optical filter bank multi-carrier (FBMC) modulation for visible light communication using laser diode
title_full Low complexity of optical filter bank multi-carrier (FBMC) modulation for visible light communication using laser diode
title_fullStr Low complexity of optical filter bank multi-carrier (FBMC) modulation for visible light communication using laser diode
title_full_unstemmed Low complexity of optical filter bank multi-carrier (FBMC) modulation for visible light communication using laser diode
title_sort low complexity of optical filter bank multi-carrier (fbmc) modulation for visible light communication using laser diode
publishDate 2022
url http://eprints.uthm.edu.my/8375/1/24p%20ABDULLAH%20ALI%20QASIM.pdf
http://eprints.uthm.edu.my/8375/2/ABDULLAH%20ALI%20QASIM%20COPYRIGHT%20DECLARATION.pdf
http://eprints.uthm.edu.my/8375/3/ABDULLAH%20ALI%20QASIM%20WATERMARK.pdf
http://eprints.uthm.edu.my/8375/
_version_ 1758952398906195968
score 13.211869

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