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Impact of InterChannel Interference in gridless nyquist-wdm systems with and without nonlinear impairments compensation

dc.creatorGranada Torres, Jhon James
dc.creatorLópez Martínez, Juan Pablo
dc.creatorAvendaño Fernández, Eduardo
dc.creatorCárdenas Soto, Ana María
dc.creatorGuerrero González, Neil
dc.date2019-06-20
dc.identifierhttps://revistas.unimilitar.edu.co/index.php/rcin/article/view/3830
dc.identifier10.18359/rcin.3830
dc.descriptionThis paper presents a characterization of interchannel interference (ICI) effects in gridless Nyquist-wdm systems due to two contributions, namely, overlapping among optical carriers and stimulation of nonlinear optical fiber impairments. ICI is assessed regarding bit error rate (BER) at 16 and 32 Gbaud, as a function of several system parameters. Nonlinear impairment compensation based on the digital back-propagation algorithm is implemented in the DSP-based coherent receiver. Results demonstrated that ICI due to channels overlapped has a higher impact concerning BER than nonlinear optical fiber impairments. Besides, the use of the back-propagation algorithm improves system performance, reducing up to 3 and 0.7 orders of magnitude of BER in QPSK and 16QAM cases, respectively. It means that this algorithm can minimize nonlinear effects under varying system parameters, but its performance is limited in sub-Nyquist cases.en-US
dc.descriptionEn este artículo, se presenta una caracterización sistemática de los efectos de la interferencia intercanal (ICI) en sistemas Nyquist-wdm debido a dos contribuciones: i) traslape espectral de las portadoras y ii) estimulación de los efectos no lineales de la fibra óptica. La ICI se evalúa en términos de la tasa de error de bit (BER) a 16 Gbaudios y 32 Gbaudios, como función de la potencia de diversos parámetros del sistema. Se implementa en el DSP del receptor coherente un ecualizador no lineal basado en el algoritmo backpropagation, para compensar los Efectos no lineales en la señal recibida. Los resultados demostraron que la ici debido a los canales traslapados tiene mayor impacto en la BER que la ICI debido a las no linealidades de la fibra óptica sin traslape. Además, el ecualizador no lineal mejora el desempeño del sistema al reducir la BER hasta 3 y 0.7 órdenes de magnitud para QPSK y 16QAM, respectivamente. Esto significa que el algoritmo backpropagation puede minimizar efectos no lineales de la ICI bajo variaciones en los parámetros del sistema, pero su desempeño se limita en escenarios con espaciamiento espectral sub-Nyquist.es-ES
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dc.languageeng
dc.publisherUniversidad Militar Nueva Granadaes-ES
dc.relationhttps://revistas.unimilitar.edu.co/index.php/rcin/article/view/3830/3594
dc.relationhttps://revistas.unimilitar.edu.co/index.php/rcin/article/view/3830/3725
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dc.rightsDerechos de autor 2019 Ciencia e Ingeniería Neogranadinaes-ES
dc.sourceCiencia e Ingenieria Neogranadina; Vol. 29 No. 2 (2019); 9-23en-US
dc.sourceCiencia e Ingeniería Neogranadina; Vol. 29 Núm. 2 (2019); 9-23es-ES
dc.sourceCiencia e Ingeniería Neogranadina; v. 29 n. 2 (2019); 9-23pt-BR
dc.source1909-7735
dc.source0124-8170
dc.subjectCoherent Communicationen-US
dc.subjectFiber Communicationen-US
dc.subjectDigital Equalizationen-US
dc.subjectInterchannel Interference.en-US
dc.subjectcomunicaciones coherenteses-ES
dc.subjectcomunicaciones por fibra ópticaes-ES
dc.subjectecualización digitales-ES
dc.subjectinterferencia intercanales-ES
dc.subjectdiafonía no lineales-ES
dc.titleImpact of InterChannel Interference in gridless nyquist-wdm systems with and without nonlinear impairments compensationen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typetextoen-US


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