Title :
Nonbinary LDPC codes for optical communication systems
Author :
Djordjevic, Ivan B. ; Vasic, Bane
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
Abstract :
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%.
Keywords :
error statistics; forward error correction; optical fibre communication; parity check codes; bit-error rate; coding gain; long-haul high-speed optical transmission; low-density parity-check codes; nonbinary LDPC codes; redundancy; AWGN; Bit error rate; Code standards; Communication standards; Galois fields; High speed optical techniques; Optical fiber communication; Optical transmitters; Parity check codes; Sparse matrices; Forward-error correction (FEC); low-density parity-check (LDPC) codes; optical communications;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.856337
