Construction of irregular QC LDPC codes with low error floor for high speed optical communications

We propose a construction method of irregular QC LDPC codes for high speed optical communications, by which the constructed codes not only can achieve high coding gain only through a few iterations but also do not exhibit error floor above the BER of 10-10.

[1]  Yang Li,et al.  FPGA verification of a single QC-LDPC code for 100 Gb/s optical systems without error floor down to BER of 10−15 , 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.

[2]  Ivan B Djordjevic,et al.  Large Girth Low-Density Parity-Check Codes for Long-Haul High-Speed Optical Communications , 2008, OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference.

[3]  Xue Chen,et al.  A multi-rate regular QC-LDPC scheme for optical communication based on Finite Geometries , 2015 .

[4]  Stephan ten Brink,et al.  Convergence behavior of iteratively decoded parallel concatenated codes , 2001, IEEE Trans. Commun..

[5]  Stephan ten Brink,et al.  Design of low-density parity-check codes for modulation and detection , 2004, IEEE Transactions on Communications.