Abstract
In this paper, we propose a Free-Space Optical (FSO) system model based on multiple subcarrier modulation (MSM) using M-ary Phase Shift Keying (M-ary PSK) scheme over Intensity Modulation Direct Detection optical link. We investigate the impact of aperture averaging on our model across weak-to-strong turbulence regimes taking into consideration the intermodulation distortion term due to the laser diode non-linearity. By using a modified model for aperture averaging technique, we also show that there is a design tradeoff between the receiver lens aperture and the required average Carrier-to-Noise and Distortion Ratio to achieve a given average bit error rate, ensuring substantial scintillation fade reduction.
| Original language | English |
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| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 7814 |
| DOIs | |
| Publication status | Published - 2010 |
| Event | Free-Space Laser Communications X - San Diego, CA Duration: 2010 Aug 2 → 2010 Aug 3 |
Other
| Other | Free-Space Laser Communications X |
|---|---|
| City | San Diego, CA |
| Period | 10/8/2 → 10/8/3 |
Keywords
- Aperture averaging
- Free-space optics (FSO)
- M-ary phase shift keying (M-ary PSK)
- Multiple subcarrier modulation (MSM)
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics