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Article: High-speed acoustic communication by multiplexing orbital angular momentum

TitleHigh-speed acoustic communication by multiplexing orbital angular momentum
Authors
KeywordsDemultiplexing
High spectral efficiency
High-speed acoustic communication
Multiplexing
Orbital angular momentum
Issue Date2017
PublisherNational Academy of Sciences. The Journal's web site is located at http://www.pnas.org
Citation
Proceedings of the National Academy of Sciences, 2017, v. 114 n. 28, p. 7250-7253 How to Cite?
AbstractLong-range acoustic communication is crucial to underwater applications such as collection of scientific data from benthic stations, ocean geology, and remote control of off-shore industrial activities. However, the transmission rate of acoustic communicationis always limited by the narrow-frequency bandwidth of the acoustic waves because of the large attenuation for high-frequency sound in water. Here, we demonstrate a high-throughput communication approach using the orbital angular momentum (OAM) of acoustic vortex beams with one order enhancement of the data transmission rate at a single frequency. The topological charges of OAM provide intrinsically orthogonal channels, offering a unique ability to multiplex data transmission within a single acoustic beam generated by a transducer array, drastically increasing the information channels and capacity of acoustic communication. A high spectral efficiency of 8.0 ± 0.4 (bit/s)/Hz in acoustic communication has been achieved using topological charges between -4 and +4 without applying other communication modulation techniques. Such OAM is a completely independent degree of freedom which can be readily integrated with other state-of-the-art communication modulation techniques like quadrature amplitude modulation (QAM) and phase-shift keying (PSK). Information multiplexing through OAM opens a dimension for acoustic communication, providing a data transmission rate that is critical for underwater applications.
Persistent Identifierhttp://hdl.handle.net/10722/257367
ISSN
2015 Impact Factor: 9.423
2015 SCImago Journal Rankings: 6.883

 

DC FieldValueLanguage
dc.contributor.authorShi, C-
dc.contributor.authorDubois, M-
dc.contributor.authorWang, Y-
dc.contributor.authorZhang, X-
dc.contributor.authorSheng, P-
dc.date.accessioned2018-07-27T08:03:05Z-
dc.date.available2018-07-27T08:03:05Z-
dc.date.issued2017-
dc.identifier.citationProceedings of the National Academy of Sciences, 2017, v. 114 n. 28, p. 7250-7253-
dc.identifier.issn0027-8424-
dc.identifier.urihttp://hdl.handle.net/10722/257367-
dc.description.abstractLong-range acoustic communication is crucial to underwater applications such as collection of scientific data from benthic stations, ocean geology, and remote control of off-shore industrial activities. However, the transmission rate of acoustic communicationis always limited by the narrow-frequency bandwidth of the acoustic waves because of the large attenuation for high-frequency sound in water. Here, we demonstrate a high-throughput communication approach using the orbital angular momentum (OAM) of acoustic vortex beams with one order enhancement of the data transmission rate at a single frequency. The topological charges of OAM provide intrinsically orthogonal channels, offering a unique ability to multiplex data transmission within a single acoustic beam generated by a transducer array, drastically increasing the information channels and capacity of acoustic communication. A high spectral efficiency of 8.0 ± 0.4 (bit/s)/Hz in acoustic communication has been achieved using topological charges between -4 and +4 without applying other communication modulation techniques. Such OAM is a completely independent degree of freedom which can be readily integrated with other state-of-the-art communication modulation techniques like quadrature amplitude modulation (QAM) and phase-shift keying (PSK). Information multiplexing through OAM opens a dimension for acoustic communication, providing a data transmission rate that is critical for underwater applications.-
dc.languageeng-
dc.publisherNational Academy of Sciences. The Journal's web site is located at http://www.pnas.org-
dc.relation.ispartofProceedings of the National Academy of Sciences-
dc.rightsProceedings of the National Academy of Sciences. Copyright © National Academy of Sciences.-
dc.subjectDemultiplexing-
dc.subjectHigh spectral efficiency-
dc.subjectHigh-speed acoustic communication-
dc.subjectMultiplexing-
dc.subjectOrbital angular momentum-
dc.titleHigh-speed acoustic communication by multiplexing orbital angular momentum-
dc.typeArticle-
dc.identifier.emailZhang, X: president@hku.hk-
dc.identifier.authorityZhang, X=rp02411-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1073/pnas.1704450114-
dc.identifier.scopuseid_2-s2.0-85023207253-
dc.identifier.volume114-
dc.identifier.issue28-
dc.identifier.spage7250-
dc.identifier.epage7253-
dc.publisher.placeUnited States-

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