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Adaptive Beamforming Applied to OFDM Systems
This work proposes an adaptive beamforming scheme applied to time domain, pre-FFT (Fast Fourier Transformation), Orthogonal Frequency-Division Multiplexing (OFDM) systems. This scheme improves the performance and the capacity of OFDM systems, using a supervised adaptive algorithm, with frequency dom...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6210962/ https://www.ncbi.nlm.nih.gov/pubmed/30347826 http://dx.doi.org/10.3390/s18103558 |
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author | de Sousa, Tiago F. B. Arantes, Dalton S. Fernandes, Marcelo A. C. |
author_facet | de Sousa, Tiago F. B. Arantes, Dalton S. Fernandes, Marcelo A. C. |
author_sort | de Sousa, Tiago F. B. |
collection | PubMed |
description | This work proposes an adaptive beamforming scheme applied to time domain, pre-FFT (Fast Fourier Transformation), Orthogonal Frequency-Division Multiplexing (OFDM) systems. This scheme improves the performance and the capacity of OFDM systems, using a supervised adaptive algorithm, with frequency domain multiplexed pilots of the OFDM system as a reference. The simplicity of the proposed structure, as well as the method used to obtain reference signals for the adaptive beamforming, are essential aspects that distinguish this paper from other publications. Details on the operation of the proposed scheme, as well as the performance curves, are presented in this manuscript. The proposal investigated here allows a significant reduction in the guard interval of the OFDM system, thereby increasing its robustness or transmission capacity. |
format | Online Article Text |
id | pubmed-6210962 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-62109622018-11-02 Adaptive Beamforming Applied to OFDM Systems de Sousa, Tiago F. B. Arantes, Dalton S. Fernandes, Marcelo A. C. Sensors (Basel) Article This work proposes an adaptive beamforming scheme applied to time domain, pre-FFT (Fast Fourier Transformation), Orthogonal Frequency-Division Multiplexing (OFDM) systems. This scheme improves the performance and the capacity of OFDM systems, using a supervised adaptive algorithm, with frequency domain multiplexed pilots of the OFDM system as a reference. The simplicity of the proposed structure, as well as the method used to obtain reference signals for the adaptive beamforming, are essential aspects that distinguish this paper from other publications. Details on the operation of the proposed scheme, as well as the performance curves, are presented in this manuscript. The proposal investigated here allows a significant reduction in the guard interval of the OFDM system, thereby increasing its robustness or transmission capacity. MDPI 2018-10-20 /pmc/articles/PMC6210962/ /pubmed/30347826 http://dx.doi.org/10.3390/s18103558 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article de Sousa, Tiago F. B. Arantes, Dalton S. Fernandes, Marcelo A. C. Adaptive Beamforming Applied to OFDM Systems |
title | Adaptive Beamforming Applied to OFDM Systems |
title_full | Adaptive Beamforming Applied to OFDM Systems |
title_fullStr | Adaptive Beamforming Applied to OFDM Systems |
title_full_unstemmed | Adaptive Beamforming Applied to OFDM Systems |
title_short | Adaptive Beamforming Applied to OFDM Systems |
title_sort | adaptive beamforming applied to ofdm systems |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6210962/ https://www.ncbi.nlm.nih.gov/pubmed/30347826 http://dx.doi.org/10.3390/s18103558 |
work_keys_str_mv | AT desousatiagofb adaptivebeamformingappliedtoofdmsystems AT arantesdaltons adaptivebeamformingappliedtoofdmsystems AT fernandesmarceloac adaptivebeamformingappliedtoofdmsystems |