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Optica Publishing Group
  • Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2011
  • OSA Technical Digest (CD) (Optica Publishing Group, 2011),
  • paper NWC2
  • https://doi.org/10.1364/NFOEC.2011.NWC2

Progress in Soft-Decision FEC

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Abstract

We discuss the practical implementation of LDPC codes in soft-decision FEC for 100 Gb/s digital coherent systems. The question of the definition of net coding gain for differential QPSK used to avoid cycle slip is raised.

© 2011 Optical Society of America

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