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Proceedings Paper

Evaluating M-ary PSK multiple-subcarrier modulation over FSO links using aperture averaging
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Paper 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 tradeo¤ 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.

Paper Details

Date Published: 24 August 2010
PDF: 11 pages
Proc. SPIE 7814, Free-Space Laser Communications X, 78140V (24 August 2010); doi: 10.1117/12.863105
Show Author Affiliations
C. Ben Naila, Waseda Univ. (Japan)
A. Bekkali, Waseda Univ. (Japan)
K. Kazaura, Waseda Univ. (Japan)
K. Wakamori, Waseda Univ. (Japan)
M. Matsumoto, Waseda Univ. (Japan)

Published in SPIE Proceedings Vol. 7814:
Free-Space Laser Communications X
Arun K. Majumdar; Christopher C. Davis, Editor(s)

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