Abstract
We propose an efficient coded modulation scheme for multiple input/ multiple output free-space optical systems with Q-ary pulse-position modulation. It is based on multilevel coding and low-density parity-check codes as component codes. The proposed scheme provides excellent coding gain in the regime of strong atmospheric turbulence.
Original language | English (US) |
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Pages (from-to) | 1491-1493 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 18 |
Issue number | 14 |
DOIs | |
State | Published - Jul 15 2006 |
Keywords
- Atmospheric turbulence channel
- Free-space optics
- Multilevel coding (MLC)
- Multiple input/multiple output (MIMO) processing
- Pulse-position modulation (PPM)
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering