FPGA-based non-binary QC-LDPC coding for high-speed coherent optical transmission

We present a large-girth-non-binary QC-LDPC code suitable for beyond 100 Gb/s optical transmission and describe its implementation in FPGA. Great performance with Q-limit of 5.0 dB at BER of 10-10 has been found, which corresponds to NCG of 11.95 dB at 10-15.

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