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IEEE Communications Letters
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Mitigation of Alien Crosstalk for Downstream DSL Impaired by Multiple Interferers

التخفيف من التشويش الفضائي على DSL المصب الذي يضعفه متدخلون متعددون
Authors: Diego de Azevedo Gomes; Eduardo Medeiros; Aldebaro Klautau; Evaldo Pelaes;

Mitigation of Alien Crosstalk for Downstream DSL Impaired by Multiple Interferers

Abstract

La diafonía alienígena es uno de los principales impedimentos para las transmisiones a base de cobre. Esta carta describe un método para mitigar la diafonía alienígena para las transmisiones descendentes de la línea de abonado digital afectadas por múltiples fuentes de interferencia. El método requiere un canal de referencia e incluye una etapa de posprocesamiento en la que se aplica una correlación inducida para preparar la interferencia en el canal objetivo para que se elimine razonablemente mediante una etapa de mitigación basada en la predicción. Los resultados muestran que el método propuesto supera a los métodos de mitigación de diafonía alienígena publicados a medida que aumenta el número de fuentes de interferencia en los escenarios de G.fast.

La diaphonie extraterrestre est l'une des principales déficiences des transmissions à base de cuivre. Cette lettre décrit une méthode pour atténuer la diaphonie étrangère pour les transmissions en aval de la ligne d'abonné numérique altérées par de multiples sources d'interférence. Le procédé nécessite un canal de référence et comprend une étape de post-traitement dans laquelle une corrélation induite est appliquée pour préparer l'interférence au niveau du canal cible à être raisonnablement éliminée par une étape d'atténuation basée sur la prédiction. Les résultats montrent que la méthode proposée surpasse les méthodes publiées d'atténuation de la diaphonie étrangère à mesure que le nombre de sources d'interférence augmente dans les scénarios G.fast.

Alien crosstalk is one of the major impairments for copper-based transmissions. This letter outlines a method for mitigating alien crosstalk for digital subscriber line downstream transmissions impaired by multiple interference sources. The method requires a reference channel, and includes a post-processing stage in which induced correlation is applied to prepare the interference at the target channel to be reasonably removed by a prediction-based mitigation step. The results show that the proposed method outperforms published alien crosstalk mitigation methods as the number of interference sources increase in G.fast scenarios.

يعد التشويش الفضائي أحد العوائق الرئيسية للإرسال القائم على النحاس. تحدد هذه الرسالة طريقة للتخفيف من التشويش الفضائي لعمليات الإرسال في اتجاه المصب لخط المشترك الرقمي التي تضعفها مصادر تداخل متعددة. تتطلب الطريقة قناة مرجعية، وتتضمن مرحلة ما بعد المعالجة التي يتم فيها تطبيق الارتباط المستحث لإعداد التداخل عند القناة المستهدفة ليتم إزالته بشكل معقول من خلال خطوة التخفيف القائمة على التنبؤ. تظهر النتائج أن الطريقة المقترحة تتفوق على طرق تخفيف التشويش الفضائي المنشورة مع زيادة عدد مصادر التداخل في سيناريوهات G.fast.

Keywords

Computer network, Power Line Communications in Smart Grid, Spectrum Balancing, Digital subscriber line, Electronic engineering, Astronomy and Astrophysics, Interference (communication), Computer science, Engineering, Physics and Astronomy, Channel (broadcasting), Global Lightning Distribution and Physics, Physical Sciences, FOS: Electrical engineering, electronic engineering, information engineering, Electromagnetic Compatibility in Electronics, Telecommunications, Electrical and Electronic Engineering, Crosstalk

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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