Partial Fractional Fourier Transform (PFrFT)-MIMO-OFDM for Known Underwater Acoustic Communication Channels

Communication over doubly selective channels (both time and frequency selective) suffers from significant intercarrier interference (ICI). This problem is severe in underwater acoustic communications. In this paper, a novel partial fractional (PFrFT)-MIMO-OFDM system is proposed and implemented to f...

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Autores principales:	Yixin Chen, Carmine Clemente, John J. Soraghan
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) partial fractional Fourier transform (PFrFT) banded minimum mean square error (BMMSE) Information technology T58.5-58.64
Acceso en línea:	https://doaj.org/article/7fe6da8cab8944879419351b8bc3db60
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id	oai:doaj.org-article:7fe6da8cab8944879419351b8bc3db60
record_format	dspace
spelling	oai:doaj.org-article:7fe6da8cab8944879419351b8bc3db602021-11-25T17:58:36ZPartial Fractional Fourier Transform (PFrFT)-MIMO-OFDM for Known Underwater Acoustic Communication Channels10.3390/info121104692078-2489https://doaj.org/article/7fe6da8cab8944879419351b8bc3db602021-11-01T00:00:00Zhttps://www.mdpi.com/2078-2489/12/11/469https://doaj.org/toc/2078-2489Communication over doubly selective channels (both time and frequency selective) suffers from significant intercarrier interference (ICI). This problem is severe in underwater acoustic communications. In this paper, a novel partial fractional (PFrFT)-MIMO-OFDM system is proposed and implemented to further mitigate ICI. A new iterative band minimum mean square error (BMMSE) weight combining based on LDL<sup>H</sup> factorization is used in a scenario of perfect knowledge of channel information. The proposed method is extended from SISO-OFDM configuration to MIMO-OFDM. Simulation results demonstrate that the proposed PFrFT-LDL<sup>H</sup> outperforms the other methods in the SISO-OFDM scenario and that its performance can be improved in MIMO-OFDM scenarios.Yixin ChenCarmine ClementeJohn J. SoraghanMDPI AGarticlemultiple input multiple output (MIMO)orthogonal frequency division multiplexing (OFDM)partial fractional Fourier transform (PFrFT)banded minimum mean square error (BMMSE)Information technologyT58.5-58.64ENInformation, Vol 12, Iss 469, p 469 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) partial fractional Fourier transform (PFrFT) banded minimum mean square error (BMMSE) Information technology T58.5-58.64
spellingShingle	multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) partial fractional Fourier transform (PFrFT) banded minimum mean square error (BMMSE) Information technology T58.5-58.64 Yixin Chen Carmine Clemente John J. Soraghan Partial Fractional Fourier Transform (PFrFT)-MIMO-OFDM for Known Underwater Acoustic Communication Channels
description	Communication over doubly selective channels (both time and frequency selective) suffers from significant intercarrier interference (ICI). This problem is severe in underwater acoustic communications. In this paper, a novel partial fractional (PFrFT)-MIMO-OFDM system is proposed and implemented to further mitigate ICI. A new iterative band minimum mean square error (BMMSE) weight combining based on LDL<sup>H</sup> factorization is used in a scenario of perfect knowledge of channel information. The proposed method is extended from SISO-OFDM configuration to MIMO-OFDM. Simulation results demonstrate that the proposed PFrFT-LDL<sup>H</sup> outperforms the other methods in the SISO-OFDM scenario and that its performance can be improved in MIMO-OFDM scenarios.
format	article
author	Yixin Chen Carmine Clemente John J. Soraghan
author_facet	Yixin Chen Carmine Clemente John J. Soraghan
author_sort	Yixin Chen
title	Partial Fractional Fourier Transform (PFrFT)-MIMO-OFDM for Known Underwater Acoustic Communication Channels
title_short	Partial Fractional Fourier Transform (PFrFT)-MIMO-OFDM for Known Underwater Acoustic Communication Channels
title_full	Partial Fractional Fourier Transform (PFrFT)-MIMO-OFDM for Known Underwater Acoustic Communication Channels
title_fullStr	Partial Fractional Fourier Transform (PFrFT)-MIMO-OFDM for Known Underwater Acoustic Communication Channels
title_full_unstemmed	Partial Fractional Fourier Transform (PFrFT)-MIMO-OFDM for Known Underwater Acoustic Communication Channels
title_sort	partial fractional fourier transform (pfrft)-mimo-ofdm for known underwater acoustic communication channels
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7fe6da8cab8944879419351b8bc3db60
work_keys_str_mv	AT yixinchen partialfractionalfouriertransformpfrftmimoofdmforknownunderwateracousticcommunicationchannels AT carmineclemente partialfractionalfouriertransformpfrftmimoofdmforknownunderwateracousticcommunicationchannels AT johnjsoraghan partialfractionalfouriertransformpfrftmimoofdmforknownunderwateracousticcommunicationchannels
_version_	1718411754099179520

Partial Fractional Fourier Transform (PFrFT)-MIMO-OFDM for Known Underwater Acoustic Communication Channels

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