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

fYear

2008

fDate

24-28 Feb. 2008

Firstpage

1

Lastpage

3

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/OFC.2008.4528208

Filename

4528208