Title :
Large Girth Low-Density Parity-Check Codes for Long-Haul High-Speed Optical Communications
Author :
Djordjevic, Ivan B. ; Lei Xu ; Ting Wang ; Cvijetic, Milorad
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
Abstract :
An FEC scheme based on large girth LDPC codes is proposed. A girth-10 block-circulant LDPC code of rate 0.8 outperforms its turbo-product code counterpart by 0.95 dB at BER of 10-10, on an AWGN channel. It provides the net effective coding gain of 10.95 dB at BER of 10-12. In long-haul optical transmission at 40-Gb/s it provides at least 1.47 dB improvement over corresponding turbo-product code.
Keywords :
AWGN channels; forward error correction; optical communication; parity check codes; telecommunication channels; turbo codes; AWGN channel; FEC scheme; LDPC codes; bit rate 40 Gbit/s; forward error correction; gain 10.95 dB; large-girth low-density parity-check codes; long-haul high-speed optical communications; turbo-product code; AWGN channels; Bit error rate; Crosstalk; High speed optical techniques; Laboratories; National electric code; Optical fiber communication; Parity check codes; Performance loss; Turbo codes;
Conference_Titel :
Optical Fiber communication/National Fiber Optic Engineers Conference, 2008. OFC/NFOEC 2008. Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-55752-856-8
DOI :
10.1109/OFC.2008.4528208
