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77028

Efficient Adaptive Equalization for Wireless Optical Communication Systems

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Last updated: 25 Dec 2024

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Abstract

Optical Wireless Communication (OWC) system is used in many applications to transmit and receive light waves via free space. It is a perfect solution when it is difficult to use optical fibers system due to its cost or constructing difficulty.  On the other hand, FSO systems suffer from the physical impairments in free space channel such as clouds, fog, snow and rain that may degrade the transmission quality. This paper presents an efficient adaptive equalization scheme for OWC systems to mitigate the effect of ISI due to atmospheric impairments. It is based on using the Recursive Least Squares (RLS) equalizer with Activity Detection Guidance (ADG) and Tap Decoupling (TD).  The simulation results prove that the proposed scheme gives a very good performance to mitigate the problem of ISI in OWC systems. In addition, the results prove that the RLS algorithm has a fast convergence rate, which recommends it for nonstationary channel models (wireless communication environments).

DOI

10.21608/mjeer.2019.77028

Keywords

Free Space Optics (FSO), Optical Wireless Communication (OWC), Adaptive Equalizer, Recursive Least Squares. (RLS) Equalizer, ADG (Activity Detection Guidance), TD (Tap Decoupling)

Authors

First Name

Randa S.

Last Name

Hammad

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Affiliation

Communication Department Faculty of Electronic Engineering El-Menoufia University El-Menoufia, Egypt

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First Name

El_Sayed M.

Last Name

El_Rabaie

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Affiliation

Communication Department Faculty of Electronic Engineering El-Menoufia University El-Menoufia, Egypt.

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First Name

Fathi. E.

Last Name

Abd-El-Samie

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Affiliation

Communication Department Faculty of Electronic Engineering El-Menoufia University El-Menoufia, Egypt.

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First Name

Ibrahim M.

Last Name

El-Dokany

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-

Affiliation

Communication Department Faculty of Electronic Engineering El-Menoufia University El-Menoufia, Egypt.

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Volume

28

Article Issue

ICEEM2019-Special Issue

Related Issue

9704

Issue Date

2019-12-01

Receive Date

2020-03-11

Publish Date

2019-12-01

Page Start

224

Page End

231

Print ISSN

1687-1189

Online ISSN

2682-3535

Link

https://mjeer.journals.ekb.eg/article_77028.html

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https://mjeer.journals.ekb.eg/service?article_code=77028

Order

62

Type

Original Article

Type Code

1,088

Publication Type

Journal

Publication Title

Menoufia Journal of Electronic Engineering Research

Publication Link

https://mjeer.journals.ekb.eg/

MainTitle

Efficient Adaptive Equalization for Wireless Optical Communication Systems

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Article

Created At

22 Jan 2023