Open AccessFPGA implementation of concatenated non-binary QC-LDPC codes for high-speed optical transport
Author(s) -
Ding Zou,
Ivan B. Djordjević
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.014501
Subject(s) - forward error correction , low density parity check code , computer science , concatenated error correction code , concatenation (mathematics) , error detection and correction , serial concatenated convolutional codes , decoding methods , algorithm , block code , mathematics , arithmetic
In this paper, we propose a soft-decision-based FEC scheme that is the concatenation of a non-binary LDPC code and hard-decision FEC code. The proposed NB-LDPC + RS with overhead of 27.06% provides a superior NCG of 11.9dB at a post-FEC BER of 10 -15 . As a result, the proposed NB-LDPC codes represent the strong FEC candidate of soft-decision FEC for beyond 100Gb/s optical transmission systems.