Proposal for beyond 100-Gb/s optical transmission based on bit-interleaved LDPC-coded modulation

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An iterative bandwidth-efficient coded modulation scheme based on bit-interleaving low-density parity-check (LDPC) codes, and M-ary differential phase-shift keying is proposed. A bit-interleaved LDPC-coded scheme, carrying 3 bits/symbol, provides the coding gain of 8.3 dB at a bit-error rate (BER) of 10-7. The expected coding gain at BER of 10-12 is 12.8 dB. Possible applications include 100G Ethernet, and high-speed (>100 Gb/s) long-haul transmission.

Original languageEnglish (US)
Pages (from-to)874-876
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number12
StatePublished - Jun 15 2007



  • 100G Ethernet
  • Bit-interleaved coded modulation
  • Direct detection
  • High-speed optical transmission
  • Low-density parity-check (LDPC) codes
  • Optical communications

ASJC Scopus subject areas

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

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