An experimental investigation of high-rate nonbinary quasi-cyclic LDPC-coded modulation for coherent optical communication

Xuezhi Hong, Murat Arabaci, Ivan B Djordjevic

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


A rate-0.83 nonbinary quasi-cyclic LDPC-coded modulation scheme is experimentally investigated in a coherent optical QPSK system. Large coding gains are observed for both I/Q well balanced and highly imbalanced cases. By increasing the BCJR equalizer's memory, degradation caused by insufficient receiver bandwidth is successfully mitigated.

Original languageEnglish (US)
Title of host publicationIEEE Photonic Society 24th Annual Meeting, PHO 2011
Number of pages2
Publication statusPublished - 2011
Event24th Annual Meeting on IEEE Photonic Society, PHO 2011 - Arlington, VA, United States
Duration: Oct 9 2011Oct 13 2011


Other24th Annual Meeting on IEEE Photonic Society, PHO 2011
CountryUnited States
CityArlington, VA



  • coherent optical communication
  • forward error correction
  • low-density parity-check (LDPC) codes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this