Electromagnetic Insights Into Path Loss Modelling of IRS-Assisted SISO Links: Method-Of-Moment Based Analysis

In this paper, we demonstrate the usefulness of MoM (Method-of-Moments) based methods in efficient path-loss modelling for SISO (single-input single-output) communication links assisted by IRS (Intelligent Reflecting Surfaces). Being a full-wave computational electromagnetic tool, MoM is better equi...

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Autores principales:	Debdeep Sarkar , Yahia Antar
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	intelligent reflecting surface method of moment path loss mutual coupling SISO Communication. Mass media P87-96
Acceso en línea:	https://doaj.org/article/55d6758bf834408a8843af90961963c9
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id	oai:doaj.org-article:55d6758bf834408a8843af90961963c9
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spelling	oai:doaj.org-article:55d6758bf834408a8843af90961963c92021-11-11T08:01:07ZElectromagnetic Insights Into Path Loss Modelling of IRS-Assisted SISO Links: Method-Of-Moment Based Analysis2673-530X10.3389/frcmn.2021.733698https://doaj.org/article/55d6758bf834408a8843af90961963c92021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/frcmn.2021.733698/fullhttps://doaj.org/toc/2673-530XIn this paper, we demonstrate the usefulness of MoM (Method-of-Moments) based methods in efficient path-loss modelling for SISO (single-input single-output) communication links assisted by IRS (Intelligent Reflecting Surfaces). Being a full-wave computational electromagnetic tool, MoM is better equipped compared to high-frequency asymptotic methods like PO (Physical Optics), to handle the crucial electromagnetic (EM) effects like: mutual coupling between IRS unit-cells or interactions with spherical wave-front in antenna near-field. Furthermore, in terms of computational speed, accuracy and reproducibility, the MoM-based MATLAB Antenna Toolbox is significantly advantageous to emulate IRS-assisted wireless channels, as compared to the in-house FDTD (finite-difference time-domain) techniques. We consider a SISO system of two half-wavelength dipoles, and use a rectangular array of circular loops loaded with lumped circuit components as IRS. The lumped circuit loading enables us to control the reactance of individual unit-cells, resulting in alteration of IRS reflection coefficient and consequent changes in channel characteristics. Using numerous numerical simulations, we highlight the impacts of various IRS-parameters like: electrical size and number of unit-cells, distance of IRS from the transmitter/receiver as well as mutual coupling, on the path-loss models (both sub-6 GHz and mm-wave).Debdeep Sarkar Yahia AntarFrontiers Media S.A.articleintelligent reflecting surfacemethod of momentpath lossmutual couplingSISOCommunication. Mass mediaP87-96ENFrontiers in Communications and Networks, Vol 2 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	intelligent reflecting surface method of moment path loss mutual coupling SISO Communication. Mass media P87-96
spellingShingle	intelligent reflecting surface method of moment path loss mutual coupling SISO Communication. Mass media P87-96 Debdeep Sarkar Yahia Antar Electromagnetic Insights Into Path Loss Modelling of IRS-Assisted SISO Links: Method-Of-Moment Based Analysis
description	In this paper, we demonstrate the usefulness of MoM (Method-of-Moments) based methods in efficient path-loss modelling for SISO (single-input single-output) communication links assisted by IRS (Intelligent Reflecting Surfaces). Being a full-wave computational electromagnetic tool, MoM is better equipped compared to high-frequency asymptotic methods like PO (Physical Optics), to handle the crucial electromagnetic (EM) effects like: mutual coupling between IRS unit-cells or interactions with spherical wave-front in antenna near-field. Furthermore, in terms of computational speed, accuracy and reproducibility, the MoM-based MATLAB Antenna Toolbox is significantly advantageous to emulate IRS-assisted wireless channels, as compared to the in-house FDTD (finite-difference time-domain) techniques. We consider a SISO system of two half-wavelength dipoles, and use a rectangular array of circular loops loaded with lumped circuit components as IRS. The lumped circuit loading enables us to control the reactance of individual unit-cells, resulting in alteration of IRS reflection coefficient and consequent changes in channel characteristics. Using numerous numerical simulations, we highlight the impacts of various IRS-parameters like: electrical size and number of unit-cells, distance of IRS from the transmitter/receiver as well as mutual coupling, on the path-loss models (both sub-6 GHz and mm-wave).
format	article
author	Debdeep Sarkar Yahia Antar
author_facet	Debdeep Sarkar Yahia Antar
author_sort	Debdeep Sarkar
title	Electromagnetic Insights Into Path Loss Modelling of IRS-Assisted SISO Links: Method-Of-Moment Based Analysis
title_short	Electromagnetic Insights Into Path Loss Modelling of IRS-Assisted SISO Links: Method-Of-Moment Based Analysis
title_full	Electromagnetic Insights Into Path Loss Modelling of IRS-Assisted SISO Links: Method-Of-Moment Based Analysis
title_fullStr	Electromagnetic Insights Into Path Loss Modelling of IRS-Assisted SISO Links: Method-Of-Moment Based Analysis
title_full_unstemmed	Electromagnetic Insights Into Path Loss Modelling of IRS-Assisted SISO Links: Method-Of-Moment Based Analysis
title_sort	electromagnetic insights into path loss modelling of irs-assisted siso links: method-of-moment based analysis
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/55d6758bf834408a8843af90961963c9
work_keys_str_mv	AT debdeepsarkar electromagneticinsightsintopathlossmodellingofirsassistedsisolinksmethodofmomentbasedanalysis AT yahiaantar electromagneticinsightsintopathlossmodellingofirsassistedsisolinksmethodofmomentbasedanalysis
_version_	1718439308960989184

Electromagnetic Insights Into Path Loss Modelling of IRS-Assisted SISO Links: Method-Of-Moment Based Analysis

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