Performance Analysis of RIS-Assisted FSO Communications over Fisher–Snedecor <inline-formula><math display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> Turbulence Channels

The Fisher–Snedecor (F-S) <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> distribution has recently been intr...

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Autores principales:	Caslav Stefanovic, Máximo Morales-Céspedes, Ana García Armada
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	6G beyond 5G Fisher–Snedecor ℱ distribution FSO communications outage probability re-configurable intelligent surface (RIS) Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/b7097e0ec12e423da0c78fcf763a288b
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spelling	oai:doaj.org-article:b7097e0ec12e423da0c78fcf763a288b2021-11-11T15:12:55ZPerformance Analysis of RIS-Assisted FSO Communications over Fisher–Snedecor <inline-formula><math display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> Turbulence Channels10.3390/app1121101492076-3417https://doaj.org/article/b7097e0ec12e423da0c78fcf763a288b2021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10149https://doaj.org/toc/2076-3417The Fisher–Snedecor (F-S) <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> distribution has recently been introduced as a tractable turbulence-induced (TI) fading model that fits well with the experimental data. This paper provides a performance evaluation of a free-space optical (FSO) re-configurable intelligent surface (RIS)-assisted communications (ACs) link over the F-S <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> TI fading channels, assuming the intensity modulation–direct detection (IM–DD) technique. In particular, novel and closed-form (C-F) analytical expressions for the probability density function (PDF) and cumulative distribution function (CDF) of the end-to-end signal-to-noise ratio (SNR) in terms of Gaussian hyper-geometric functions are efficiently derived. Capitalizing on the obtained results, novel C-F analytical expressions for the moment generating function (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi mathvariant="script">M</mi><mrow><mi>M</mi><mi>G</mi><mi>F</mi></mrow></msub></semantics></math></inline-formula>), outage probability (OP), average bit error rate (BER) and ergodic channel capacity <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo stretchy="false">(</mo><msub><mi>C</mi><mi>γ</mi></msub><mo stretchy="false">)</mo></mrow></semantics></math></inline-formula> of the FSO RIS-ACs system over the F-S <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> TI fading channels are provided and numerically evaluated under the various TI fading severity conditions. Furthermore, the second-order (S-O) statistical expressions for the level crossing rate (LCR) and average fade duration (AFD) are obtained and thoroughly examined for various FSO RIS-ACs system model parameters.Caslav StefanovicMáximo Morales-CéspedesAna García ArmadaMDPI AGarticle6Gbeyond 5GFisher–Snedecor ℱ distributionFSO communicationsoutage probabilityre-configurable intelligent surface (RIS)TechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10149, p 10149 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	6G beyond 5G Fisher–Snedecor ℱ distribution FSO communications outage probability re-configurable intelligent surface (RIS) Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	6G beyond 5G Fisher–Snedecor ℱ distribution FSO communications outage probability re-configurable intelligent surface (RIS) Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Caslav Stefanovic Máximo Morales-Céspedes Ana García Armada Performance Analysis of RIS-Assisted FSO Communications over Fisher–Snedecor <inline-formula><math display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> Turbulence Channels
description	The Fisher–Snedecor (F-S) <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> distribution has recently been introduced as a tractable turbulence-induced (TI) fading model that fits well with the experimental data. This paper provides a performance evaluation of a free-space optical (FSO) re-configurable intelligent surface (RIS)-assisted communications (ACs) link over the F-S <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> TI fading channels, assuming the intensity modulation–direct detection (IM–DD) technique. In particular, novel and closed-form (C-F) analytical expressions for the probability density function (PDF) and cumulative distribution function (CDF) of the end-to-end signal-to-noise ratio (SNR) in terms of Gaussian hyper-geometric functions are efficiently derived. Capitalizing on the obtained results, novel C-F analytical expressions for the moment generating function (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi mathvariant="script">M</mi><mrow><mi>M</mi><mi>G</mi><mi>F</mi></mrow></msub></semantics></math></inline-formula>), outage probability (OP), average bit error rate (BER) and ergodic channel capacity <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo stretchy="false">(</mo><msub><mi>C</mi><mi>γ</mi></msub><mo stretchy="false">)</mo></mrow></semantics></math></inline-formula> of the FSO RIS-ACs system over the F-S <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> TI fading channels are provided and numerically evaluated under the various TI fading severity conditions. Furthermore, the second-order (S-O) statistical expressions for the level crossing rate (LCR) and average fade duration (AFD) are obtained and thoroughly examined for various FSO RIS-ACs system model parameters.
format	article
author	Caslav Stefanovic Máximo Morales-Céspedes Ana García Armada
author_facet	Caslav Stefanovic Máximo Morales-Céspedes Ana García Armada
author_sort	Caslav Stefanovic
title	Performance Analysis of RIS-Assisted FSO Communications over Fisher–Snedecor <inline-formula><math display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> Turbulence Channels
title_short	Performance Analysis of RIS-Assisted FSO Communications over Fisher–Snedecor <inline-formula><math display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> Turbulence Channels
title_full	Performance Analysis of RIS-Assisted FSO Communications over Fisher–Snedecor <inline-formula><math display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> Turbulence Channels
title_fullStr	Performance Analysis of RIS-Assisted FSO Communications over Fisher–Snedecor <inline-formula><math display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> Turbulence Channels
title_full_unstemmed	Performance Analysis of RIS-Assisted FSO Communications over Fisher–Snedecor <inline-formula><math display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> Turbulence Channels
title_sort	performance analysis of ris-assisted fso communications over fisher–snedecor <inline-formula><math display="inline"><semantics><mi mathvariant="script">f</mi></semantics></math></inline-formula> turbulence channels
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b7097e0ec12e423da0c78fcf763a288b
work_keys_str_mv	AT caslavstefanovic performanceanalysisofrisassistedfsocommunicationsoverfishersnedecorinlineformulamathdisplayinlinesemanticsmimathvariantscriptfmisemanticsmathinlineformulaturbulencechannels AT maximomoralescespedes performanceanalysisofrisassistedfsocommunicationsoverfishersnedecorinlineformulamathdisplayinlinesemanticsmimathvariantscriptfmisemanticsmathinlineformulaturbulencechannels AT anagarciaarmada performanceanalysisofrisassistedfsocommunicationsoverfishersnedecorinlineformulamathdisplayinlinesemanticsmimathvariantscriptfmisemanticsmathinlineformulaturbulencechannels
_version_	1718436682500407296

Performance Analysis of RIS-Assisted FSO Communications over Fisher–Snedecor <inline-formula><math display="inline"><semantics><mi mathvariant="script">F</mi></semantics></math></inline-formula> Turbulence Channels

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