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 language | English (US) |
|---|---|
| Article number | 58920V |
| Pages (from-to) | 1-7 |
| Number of pages | 7 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5892 |
| DOIs | |
| State | Published - 2005 |
| Event | Free-Space Laser Communications V - San Diego, CA, United States Duration: Jul 31 2005 → Aug 2 2005 |
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