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Nonbinary LDPC codes for optical communication systems

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2 Author(s)
Djordjevic, I.B. ; Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA ; Vasic, B.

We propose a class of moderate-length nonbinary low-density parity-check (LDPC) codes for long-haul high-speed optical transmission systems. In particular, we present an LDPC code with 12.59% redundancy that achieves a 9.9-dB coding gain at a bit-error rate of 10-10. A similar coding gain is obtained for a long nonbinary LDPC code with a redundancy of only 6.7%.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 10 )