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NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing

With the fast development of giant LEO constellations, the effective spectrum utilization has been regarded as one of the key orientations for satellite communications. This paper focuses on improving the spectrum utilization efficiency of satellite communications by proposing a non-continuous ortho...

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Detalles Bibliográficos
Autores principales: Wang, Yong, Niu, Hehao, Zhao, Qingsong, Wang, Lei, Gao, Yue, Lin, Zhi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9145502/
https://www.ncbi.nlm.nih.gov/pubmed/35632208
http://dx.doi.org/10.3390/s22103800
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author Wang, Yong
Niu, Hehao
Zhao, Qingsong
Wang, Lei
Gao, Yue
Lin, Zhi
author_facet Wang, Yong
Niu, Hehao
Zhao, Qingsong
Wang, Lei
Gao, Yue
Lin, Zhi
author_sort Wang, Yong
collection PubMed
description With the fast development of giant LEO constellations, the effective spectrum utilization has been regarded as one of the key orientations for satellite communications. This paper focuses on improving the spectrum utilization efficiency of satellite communications by proposing a non-continuous orthogonal frequency division multiplexing (NC-OFDM) method. Based on the models of NC-OFDM system, we first propose a sub-carrier allocation method by using spectrum sensing to efficiently perceive and utilize the spectrum holes in the satellite communication system. Then, a hybrid genetic particle swarm optimization method is adopted to allocate the channel resources effectively. Finally, simulation results verify that the proposed algorithm can significantly improve the spectrum efficiency of satellite communications.
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spelling pubmed-91455022022-05-29 NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing Wang, Yong Niu, Hehao Zhao, Qingsong Wang, Lei Gao, Yue Lin, Zhi Sensors (Basel) Article With the fast development of giant LEO constellations, the effective spectrum utilization has been regarded as one of the key orientations for satellite communications. This paper focuses on improving the spectrum utilization efficiency of satellite communications by proposing a non-continuous orthogonal frequency division multiplexing (NC-OFDM) method. Based on the models of NC-OFDM system, we first propose a sub-carrier allocation method by using spectrum sensing to efficiently perceive and utilize the spectrum holes in the satellite communication system. Then, a hybrid genetic particle swarm optimization method is adopted to allocate the channel resources effectively. Finally, simulation results verify that the proposed algorithm can significantly improve the spectrum efficiency of satellite communications. MDPI 2022-05-17 /pmc/articles/PMC9145502/ /pubmed/35632208 http://dx.doi.org/10.3390/s22103800 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
Wang, Yong
Niu, Hehao
Zhao, Qingsong
Wang, Lei
Gao, Yue
Lin, Zhi
NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing
title NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing
title_full NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing
title_fullStr NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing
title_full_unstemmed NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing
title_short NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing
title_sort nc-ofdm satellite communication based on compressed spectrum sensing
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9145502/
https://www.ncbi.nlm.nih.gov/pubmed/35632208
http://dx.doi.org/10.3390/s22103800
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