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Optica Publishing Group
  • Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013
  • OSA Technical Digest (online) (Optica Publishing Group, 2013),
  • paper OW4B.5
  • https://doi.org/10.1364/OFC.2013.OW4B.5

Low-Complexity Fractionally-Spaced Frequency Domain Equalization with Improved Channel Estimation for Long-Haul Coherent Optical Systems

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Abstract

We present a coherent single-carrier system with optimized channel estimation and low-complexity fractionally-spaced frequency-domain equalizer. The concept is experimentally demonstrated for QPSK and 16-QAM systems to enable substantial overhead and complexity reduction without performance degradation.

© 2013 Optical Society of America

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