High-rate error-correction codes for the optical atmospheric channel

Research output: Contribution to journalConference article

11 Scopus citations

Abstract

We evaluate two error correction systems based on low-density parity-check (LDPC) codes for free-space optical (FSO) communication channels subject to atmospheric turbulence. We simulate the effect of turbulence on the received signal by modeling the channel with a gamma-gamma distribution. We compare the bit-error rate performance of these codes with the performance of Reed-Solomon codes of similar rate and obtain coding gains from 3 to 14 dB depending on the turbulence conditions.

Original languageEnglish (US)
Article number58920V
Pages (from-to)1-7
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5892
DOIs
StatePublished - Dec 1 2005
EventFree-Space Laser Communications V - San Diego, CA, United States
Duration: Jul 31 2005Aug 2 2005

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Keywords

  • Atmospheric turbulence
  • Error-correction codes
  • Free-space optical communication
  • Low-density parity-check codes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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