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Abstract: Fiber optics is one of the highest bandwidth communication channel types inthe current communication industry. The paper is to analyze a typical opticalchannel and perform channel equalization using an adaptive modified DFE withActivity Detection Guidance and Tap Decoupling algorithm. Evaluation can bemade on the employment of the DFE algorithm and with enhancements, likeFractionally-Spaced equalization and Activity Detection Guidance, to improveits stability, steady-state error performance and convergence rate. Thesuccessful implementation of the Adaptive FS-DFE with ADG and TD techniqueoffers an excellent alternative to linear equalization, which is known to be oflittle benefit for optical channels because of exorbitant noise enhancement.The FSE technique, when combined with the DFE, would offer improvedeffectiveness to amplitude distortion. As the impulse response of a typicaloptical link would have regions that are essentially zero, the employment ofthe activity detection scheme with Tap Decoupling would further enhance thesteady-state error performance and convergence rate.



Autor: Tarek Hasan-Al-Mahmud, M.Mahbubur Rahman, Sumon Kumar Debnath

Fuente: https://arxiv.org/



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