Abstract
In this letter, we propose a four-dimensional (4-D) nonbinary low-density parity-check-coded modulation (NB-LDPC-CM) scheme suitable for beyond 100-Gb/s optical fiber communication. Incorporating spectrally efficient modulation formats to achieve high aggregate bit rates and nonbinary LDPC codes for forward error correction (FEC), the proposed scheme offers a superior advanced FEC solution for optical fiber communication systems than the prior-art bit-interleaved LDPC-coded modulation (BI-LDPC-CM) scheme. Compared to the previously reported bit error rate (BER) performance results of BI-LDPC-CM, the proposed scheme offers additional net coding gains (NCGs) of 0.29 dB, 1.17 dB, and 2.17 dB at the BER of 10-7 when 16-, 32-, and 64-point 4-D constellations are used, respectively.
| Original language | English (US) |
|---|---|
| Article number | 5893912 |
| Pages (from-to) | 1280-1282 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 23 |
| Issue number | 18 |
| DOIs | |
| State | Published - 2011 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
Keywords
- Coded modulation
- forward error correction (FEC)
- low-density parity-check (LDPC) codes
- optical fiber communication
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