Nonbinary quasi-cyclic LDPC-based coded modulation for beyond 100-Gb/s transmission

Murat Arabaci, Ivan B. Djordjevic, Ross Saunders, Roberto M. Marcoccia

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


We propose using coded modulation based on nonbinary quasi-cyclic low-density parity-check (LDPC) codes for beyond 100-Gb/s optical transmission. The proposed scheme not only lowers the latency in the system but also offers much higher coding gains than its binary counterpart based on bit-interleaved coded modulation (BICM). We show that using component LDPC codes over high order finite fields and matching bandwidth-efficient modulations, our scheme can provide around 1-dB coding gain improvement at the bit-error ratio of 10 -6 compared to a corresponding BICM-based scheme.

Original languageEnglish (US)
Article number5404879
Pages (from-to)434-436
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number6
StatePublished - Mar 15 2010


  • Forward-error correction
  • Low-density paritycheck (ldpc) codes
  • Optical communication
  • Quasi-cyclic codes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Nonbinary quasi-cyclic LDPC-based coded modulation for beyond 100-Gb/s transmission'. Together they form a unique fingerprint.

Cite this