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Demonstration of 144-Gbps Photonics-Assisted THz Wireless Transmission at 500 GHz Enabled by Joint DBN Equalizer

The THz wireless transmission system based on photonics has been a promising candidate for further 6G communication, which can provide hundreds of Gbps or even Tbps data capacity. In this paper, 144-Gbps dual polarization quadrature-phase-shift-keying (DP-QPSK) signal generation and transmission ove...

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Autores principales: Liu, Xiang, Zhang, Jiao, Gao, Shuang, Tong, Weidong, Wang, Yunwu, Lei, Mingzheng, Hua, Bingchang, Cai, Yuancheng, Zou, Yucong, Zhu, Min
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9608660/
https://www.ncbi.nlm.nih.gov/pubmed/36295970
http://dx.doi.org/10.3390/mi13101617
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author Liu, Xiang
Zhang, Jiao
Gao, Shuang
Tong, Weidong
Wang, Yunwu
Lei, Mingzheng
Hua, Bingchang
Cai, Yuancheng
Zou, Yucong
Zhu, Min
author_facet Liu, Xiang
Zhang, Jiao
Gao, Shuang
Tong, Weidong
Wang, Yunwu
Lei, Mingzheng
Hua, Bingchang
Cai, Yuancheng
Zou, Yucong
Zhu, Min
author_sort Liu, Xiang
collection PubMed
description The THz wireless transmission system based on photonics has been a promising candidate for further 6G communication, which can provide hundreds of Gbps or even Tbps data capacity. In this paper, 144-Gbps dual polarization quadrature-phase-shift-keying (DP-QPSK) signal generation and transmission over a 20-km SSMF and 3-m wireless 2 × 2 multiple-input multiple-output (MIMO) link at 500 GHz have been demonstrated. To further compensate for the linear and nonlinear distortions during the fiber–wireless transmission, a novel joint Deep Belief Network (J-DBN) equalizer is proposed. Our proposed J-DBN-based schemes are mainly optimized based upon the constant modulus algorithm (CMA) and direct-detection least mean square (DD-LMS) equalization. The results indicate that the J-DBN equalizer has better bit error rate (BER) performance in receiver sensitivity. In addition, the computational complexity of the J-DBN-based equalizer can be approximately 46% lower than that of conventional equalizers with similar performance. To our knowledge, this is the first time that a novel joint DBN equalizer has been proposed based on classical algorithms. It is a promising scheme to meet the demands of future fiber–wireless integration communication for low power consumption, low cost, and high capacity.
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spelling pubmed-96086602022-10-28 Demonstration of 144-Gbps Photonics-Assisted THz Wireless Transmission at 500 GHz Enabled by Joint DBN Equalizer Liu, Xiang Zhang, Jiao Gao, Shuang Tong, Weidong Wang, Yunwu Lei, Mingzheng Hua, Bingchang Cai, Yuancheng Zou, Yucong Zhu, Min Micromachines (Basel) Article The THz wireless transmission system based on photonics has been a promising candidate for further 6G communication, which can provide hundreds of Gbps or even Tbps data capacity. In this paper, 144-Gbps dual polarization quadrature-phase-shift-keying (DP-QPSK) signal generation and transmission over a 20-km SSMF and 3-m wireless 2 × 2 multiple-input multiple-output (MIMO) link at 500 GHz have been demonstrated. To further compensate for the linear and nonlinear distortions during the fiber–wireless transmission, a novel joint Deep Belief Network (J-DBN) equalizer is proposed. Our proposed J-DBN-based schemes are mainly optimized based upon the constant modulus algorithm (CMA) and direct-detection least mean square (DD-LMS) equalization. The results indicate that the J-DBN equalizer has better bit error rate (BER) performance in receiver sensitivity. In addition, the computational complexity of the J-DBN-based equalizer can be approximately 46% lower than that of conventional equalizers with similar performance. To our knowledge, this is the first time that a novel joint DBN equalizer has been proposed based on classical algorithms. It is a promising scheme to meet the demands of future fiber–wireless integration communication for low power consumption, low cost, and high capacity. MDPI 2022-09-27 /pmc/articles/PMC9608660/ /pubmed/36295970 http://dx.doi.org/10.3390/mi13101617 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liu, Xiang
Zhang, Jiao
Gao, Shuang
Tong, Weidong
Wang, Yunwu
Lei, Mingzheng
Hua, Bingchang
Cai, Yuancheng
Zou, Yucong
Zhu, Min
Demonstration of 144-Gbps Photonics-Assisted THz Wireless Transmission at 500 GHz Enabled by Joint DBN Equalizer
title Demonstration of 144-Gbps Photonics-Assisted THz Wireless Transmission at 500 GHz Enabled by Joint DBN Equalizer
title_full Demonstration of 144-Gbps Photonics-Assisted THz Wireless Transmission at 500 GHz Enabled by Joint DBN Equalizer
title_fullStr Demonstration of 144-Gbps Photonics-Assisted THz Wireless Transmission at 500 GHz Enabled by Joint DBN Equalizer
title_full_unstemmed Demonstration of 144-Gbps Photonics-Assisted THz Wireless Transmission at 500 GHz Enabled by Joint DBN Equalizer
title_short Demonstration of 144-Gbps Photonics-Assisted THz Wireless Transmission at 500 GHz Enabled by Joint DBN Equalizer
title_sort demonstration of 144-gbps photonics-assisted thz wireless transmission at 500 ghz enabled by joint dbn equalizer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9608660/
https://www.ncbi.nlm.nih.gov/pubmed/36295970
http://dx.doi.org/10.3390/mi13101617
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