Performance analysis of optical wireless communications with aperture averaging over exponentiated Weibull turbulence with pointing errors

Aperture averaging (AA) is a potential technique to reduce the effect of atmospheric turbulence in optical wireless communications (OWC). Although there is significant research on point-like detectors, there is a gap in the study on the analytical performance evaluation of OWC systems with AA over a...

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Autores principales:	Ziyaur Rahman, Syed Mohammad Zafaruddin, Vinod Kumar Chaubey
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Atmospheric turbulence Ergodic capacity Exotic channels Optical wireless communications Performance analysis Pointing errors Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/1158cfbd8dd34d9cba88a34e89a7663e
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spelling	oai:doaj.org-article:1158cfbd8dd34d9cba88a34e89a7663e2021-11-12T04:49:22ZPerformance analysis of optical wireless communications with aperture averaging over exponentiated Weibull turbulence with pointing errors2666-950110.1016/j.rio.2021.100171https://doaj.org/article/1158cfbd8dd34d9cba88a34e89a7663e2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666950121001176https://doaj.org/toc/2666-9501Aperture averaging (AA) is a potential technique to reduce the effect of atmospheric turbulence in optical wireless communications (OWC). Although there is significant research on point-like detectors, there is a gap in the study on the analytical performance evaluation of OWC systems with AA over atmospheric turbulence and pointing errors. In this paper, we analyze the performance of a single-link OWC system by considering the three-parameter exponentiated Weibull (EW) model for the atmospheric turbulence and the zero boresight fading model for pointing errors. We derive analytical expressions for moments of signal-to-noise ratio (SNR), ergodic capacity, outage probability, average bit-error-rate (BER), and average energy consumption under the combined effect of atmospheric turbulence and pointing errors in terms of system parameters. To provide insights on the system behavior, we develop asymptotic bounds at high SNR on the performance of the considered system. We also derive analytical expressions for the performance of OWC system under the atmospheric turbulence with negligible pointing errors. We demonstrate the performance of OWC system over EW turbulence with a comparison to the performance obtained using the Gamma–Gamma (GG) model and demonstrate the tightness of the derived performance bounds through numerical and simulation analysis.Ziyaur RahmanSyed Mohammad ZafaruddinVinod Kumar ChaubeyElsevierarticleAtmospheric turbulenceErgodic capacityExotic channelsOptical wireless communicationsPerformance analysisPointing errorsOptics. LightQC350-467ENResults in Optics, Vol 5, Iss , Pp 100171- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Atmospheric turbulence Ergodic capacity Exotic channels Optical wireless communications Performance analysis Pointing errors Optics. Light QC350-467
spellingShingle	Atmospheric turbulence Ergodic capacity Exotic channels Optical wireless communications Performance analysis Pointing errors Optics. Light QC350-467 Ziyaur Rahman Syed Mohammad Zafaruddin Vinod Kumar Chaubey Performance analysis of optical wireless communications with aperture averaging over exponentiated Weibull turbulence with pointing errors
description	Aperture averaging (AA) is a potential technique to reduce the effect of atmospheric turbulence in optical wireless communications (OWC). Although there is significant research on point-like detectors, there is a gap in the study on the analytical performance evaluation of OWC systems with AA over atmospheric turbulence and pointing errors. In this paper, we analyze the performance of a single-link OWC system by considering the three-parameter exponentiated Weibull (EW) model for the atmospheric turbulence and the zero boresight fading model for pointing errors. We derive analytical expressions for moments of signal-to-noise ratio (SNR), ergodic capacity, outage probability, average bit-error-rate (BER), and average energy consumption under the combined effect of atmospheric turbulence and pointing errors in terms of system parameters. To provide insights on the system behavior, we develop asymptotic bounds at high SNR on the performance of the considered system. We also derive analytical expressions for the performance of OWC system under the atmospheric turbulence with negligible pointing errors. We demonstrate the performance of OWC system over EW turbulence with a comparison to the performance obtained using the Gamma–Gamma (GG) model and demonstrate the tightness of the derived performance bounds through numerical and simulation analysis.
format	article
author	Ziyaur Rahman Syed Mohammad Zafaruddin Vinod Kumar Chaubey
author_facet	Ziyaur Rahman Syed Mohammad Zafaruddin Vinod Kumar Chaubey
author_sort	Ziyaur Rahman
title	Performance analysis of optical wireless communications with aperture averaging over exponentiated Weibull turbulence with pointing errors
title_short	Performance analysis of optical wireless communications with aperture averaging over exponentiated Weibull turbulence with pointing errors
title_full	Performance analysis of optical wireless communications with aperture averaging over exponentiated Weibull turbulence with pointing errors
title_fullStr	Performance analysis of optical wireless communications with aperture averaging over exponentiated Weibull turbulence with pointing errors
title_full_unstemmed	Performance analysis of optical wireless communications with aperture averaging over exponentiated Weibull turbulence with pointing errors
title_sort	performance analysis of optical wireless communications with aperture averaging over exponentiated weibull turbulence with pointing errors
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/1158cfbd8dd34d9cba88a34e89a7663e
work_keys_str_mv	AT ziyaurrahman performanceanalysisofopticalwirelesscommunicationswithapertureaveragingoverexponentiatedweibullturbulencewithpointingerrors AT syedmohammadzafaruddin performanceanalysisofopticalwirelesscommunicationswithapertureaveragingoverexponentiatedweibullturbulencewithpointingerrors AT vinodkumarchaubey performanceanalysisofopticalwirelesscommunicationswithapertureaveragingoverexponentiatedweibullturbulencewithpointingerrors
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Performance analysis of optical wireless communications with aperture averaging over exponentiated Weibull turbulence with pointing errors

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