Abstract
In this paper, we propose a unified field-programmable gate array (FPGA) structure for a rate-adaptive forward error correction (FEC) scheme based on spatially coupled (SC) LDPC codes derived from quasi-cyclic (QC) LDPC codes. We described the unified decoder structure in detail and showed that the rate adaptation can be achieved by a controller on-the-fly. By FPGA based emulation, the results show that, with comparable complexity, the SC codes provide larger coding gain. The implemented unified structure can be employed for any template QC-LDPC code to achieve a spatially-coupling based code-rate adaptation scheme.
Original language | English (US) |
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Pages (from-to) | 3422-3428 |
Number of pages | 7 |
Journal | Optics Express |
Volume | 27 |
Issue number | 3 |
DOIs | |
State | Published - Feb 4 2019 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics