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M-QAM signal transmission at the photonically generated K-band over thermal-induced turbulent FSO links with different turbulence distributions

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M-QAM signal transmission at the photonically generated K-band over thermal-induced turbulent FSO links with different turbulence distributions

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dc.contributor.author Vallejo-Castro, Luis es_ES
dc.contributor.author Nguyen, Dong-Nhat es_ES
dc.contributor.author Bohata, Jan es_ES
dc.contributor.author Ortega Tamarit, Beatriz es_ES
dc.contributor.author Zvanovec, Stanislav es_ES
dc.date.accessioned 2021-05-06T03:31:38Z
dc.date.available 2021-05-06T03:31:38Z
dc.date.issued 2020-06-01 es_ES
dc.identifier.issn 1559-128X es_ES
dc.identifier.uri http://hdl.handle.net/10251/166019
dc.description.abstract [EN] We present a theoretical and experimental study on the impact of different thermal-induced free-space turbulence distributions on the M-quadrature amplitude modulation (M-QAM) signal transmission in radio frequency K-band over hybrid optical links of standard single mode fiber (SSMF) and free-space optics (FSO). Frequency multiplication using an external intensity modulator biased at the null transmission point has been employed to photonically generate radio signals at a frequency of 25 GHz, included for the frequency bands for fifth-generation (5G) mobile networks. Moreover, extensive simulations have been performed for 10 Gb/s with 4-, 16-, and 64-QAM over 5 km of SSMF and 500 m long FSO channels under scenarios with different turbulence levels and distributions. Proof-of-concept experiments have been conducted for 20 MHz with 4- and 64-QAM over 5 km of SSMF and 2 m long FSO channels under turbulence conditions. Both theoretical and experimental systems have been analyzed in terms of error vector magnitude (EVM) performance showing feasible transmission over the hybrid links in the received optical power range. Non-uniform turbulence distributions are shown to have a different impact on M-QAM modulation formats, i.e., turbulence distributions with higher strength in the middle of the FSO link reveal a 1.9 dB penalty when using 64-QAM signals compared to a 1.3 dB penalty using 4-QAM signals, whereas higher penalties have been measured when 4-QAM format is transmitted over turbulence distributions with larger magnitude in the second half of the FSO link. The results have been validated by theoretical predictions and lead to practical consequences on future networks' deployment. es_ES
dc.description.sponsorship Generalitat Valenciana (PROMETEO 2017/103); Ministerio de Ciencia, Innovacion y Universidades (FOCAL RTI2018-101658-B-I00); Ministerstvo Prumyslu a Obchodu (FV30427) and within European Cooperation in Science andTechnology (CA16220). es_ES
dc.language Inglés es_ES
dc.publisher The Optical Society es_ES
dc.relation MPO/FV30427 es_ES
dc.relation COST/CA16220 es_ES
dc.relation GENERALITAT VALENCIANA/PROMETEO/2017/103 es_ES
dc.relation info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-101658-B-I00/ES/REDES OPTICAS HIBRIDAS ENERGETICAMENTE EFICIENTES PARA COMUNICACIONES E ILUMINACION EN INTERIORES/ es_ES
dc.relation.ispartof Applied Optics es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject.classification TEORIA DE LA SEÑAL Y COMUNICACIONES es_ES
dc.title M-QAM signal transmission at the photonically generated K-band over thermal-induced turbulent FSO links with different turbulence distributions es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1364/AO.390103 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Comunicaciones - Departament de Comunicacions es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Telecomunicación y Aplicaciones Multimedia - Institut Universitari de Telecomunicacions i Aplicacions Multimèdia es_ES
dc.description.bibliographicCitation Vallejo-Castro, L.; Nguyen, D.; Bohata, J.; Ortega Tamarit, B.; Zvanovec, S. (2020). M-QAM signal transmission at the photonically generated K-band over thermal-induced turbulent FSO links with different turbulence distributions. Applied Optics. 59(16):4997-5005. https://doi.org/10.1364/AO.390103 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1364/AO.390103 es_ES
dc.description.upvformatpinicio 4997 es_ES
dc.description.upvformatpfin 5005 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 59 es_ES
dc.description.issue 16 es_ES
dc.identifier.pmid 32543497 es_ES
dc.relation.pasarela S\418861 es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder Agencia Estatal de Investigación es_ES
dc.contributor.funder European Cooperation in Science and Technology es_ES
dc.contributor.funder Ministry of Industry and Trade, República Checa es_ES


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