A performance predictor of beamforming versus time-reversal based far-field wireless power transfer from linear array

Abstract For far-field wireless power transfer (WPT) in a complex propagation environment, a time-reversal (TR) based WPT that can overcome the drawbacks of conventional beamforming (BF) by taking advantage of multipath has been recently proposed. However, due to the WPT performance of BF and TR dep...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Hong Soo Park, Sun K. Hong
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/294f9408b60345a4997d2c2946f0f831
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:294f9408b60345a4997d2c2946f0f831
record_format	dspace
spelling	oai:doaj.org-article:294f9408b60345a4997d2c2946f0f8312021-11-28T12:18:44ZA performance predictor of beamforming versus time-reversal based far-field wireless power transfer from linear array10.1038/s41598-021-02244-92045-2322https://doaj.org/article/294f9408b60345a4997d2c2946f0f8312021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02244-9https://doaj.org/toc/2045-2322Abstract For far-field wireless power transfer (WPT) in a complex propagation environment, a time-reversal (TR) based WPT that can overcome the drawbacks of conventional beamforming (BF) by taking advantage of multipath has been recently proposed. However, due to the WPT performance of BF and TR depending on the complexity of the propagation environment, the performance prediction between BF versus TR would be required. We present a detailed and generalized analysis of the recently proposed performance metric referred to as the peak received power ratio (PRPR) for linear array-based WPT. Here, the effectiveness of PRPR is verified via measurement for free space and indoor scenarios. The results demonstrate that PRPR is directly related to the complexity of the propagation environment and the corresponding power transmission capability of BF and TR. That is, the higher the complexity, the greater the value of PRPR and TR outperforms BF with higher peak power given the same average transmit power and vice versa. The mode decision between BF and TR based on PRPR potentially promises efficient far-field WPT even in a dynamic propagation environment.Hong Soo ParkSun K. HongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hong Soo Park Sun K. Hong A performance predictor of beamforming versus time-reversal based far-field wireless power transfer from linear array
description	Abstract For far-field wireless power transfer (WPT) in a complex propagation environment, a time-reversal (TR) based WPT that can overcome the drawbacks of conventional beamforming (BF) by taking advantage of multipath has been recently proposed. However, due to the WPT performance of BF and TR depending on the complexity of the propagation environment, the performance prediction between BF versus TR would be required. We present a detailed and generalized analysis of the recently proposed performance metric referred to as the peak received power ratio (PRPR) for linear array-based WPT. Here, the effectiveness of PRPR is verified via measurement for free space and indoor scenarios. The results demonstrate that PRPR is directly related to the complexity of the propagation environment and the corresponding power transmission capability of BF and TR. That is, the higher the complexity, the greater the value of PRPR and TR outperforms BF with higher peak power given the same average transmit power and vice versa. The mode decision between BF and TR based on PRPR potentially promises efficient far-field WPT even in a dynamic propagation environment.
format	article
author	Hong Soo Park Sun K. Hong
author_facet	Hong Soo Park Sun K. Hong
author_sort	Hong Soo Park
title	A performance predictor of beamforming versus time-reversal based far-field wireless power transfer from linear array
title_short	A performance predictor of beamforming versus time-reversal based far-field wireless power transfer from linear array
title_full	A performance predictor of beamforming versus time-reversal based far-field wireless power transfer from linear array
title_fullStr	A performance predictor of beamforming versus time-reversal based far-field wireless power transfer from linear array
title_full_unstemmed	A performance predictor of beamforming versus time-reversal based far-field wireless power transfer from linear array
title_sort	performance predictor of beamforming versus time-reversal based far-field wireless power transfer from linear array
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/294f9408b60345a4997d2c2946f0f831
work_keys_str_mv	AT hongsoopark aperformancepredictorofbeamformingversustimereversalbasedfarfieldwirelesspowertransferfromlineararray AT sunkhong aperformancepredictorofbeamformingversustimereversalbasedfarfieldwirelesspowertransferfromlineararray AT hongsoopark performancepredictorofbeamformingversustimereversalbasedfarfieldwirelesspowertransferfromlineararray AT sunkhong performancepredictorofbeamformingversustimereversalbasedfarfieldwirelesspowertransferfromlineararray
_version_	1718408065938620416

A performance predictor of beamforming versus time-reversal based far-field wireless power transfer from linear array

Ejemplares similares