Frequency-Domain Channel Estimation and Equalization in Optical Communication Systems

Beschreibung

Training-aided frequency-domain equalization is proposed for coherent optical transmission systems. In particular, novel training sequences based on a special class of CAZAC codes, efficient 2x2 MIMO channel estimation algorithms, equalizer-coefficients updating solutions and a frame synchronization algorithm are derived from the theoretical linear fiber channel model. The robustness of the proposed methods is demonstrated in 100Gb/s, 200Gb/s, and 400Gb/s transmission systems with respect to the main degrading optical propagation effects.

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Fabio Pittalà

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CAZAC Channel Estimation Equalization Training-Sequence

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