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Proceedings Paper

Performance of APD-based binary PPM FSO systems
Author(s): Kamran Kiasaleh
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Paper Abstract

The bit error rate of direct-detection, avalanche photodiode (APD) based free-space optical (FSO) communication systems is studied. The system of interest utilizes pulse-position modulation (PPM) and is subjected to scintillation due to optical turbulence. A weak turbulence (clear-air) scenario is considered for which the received signal intensity may be modelled as a log-normal random process. To arrive at the desired results, it is assumed that the system utilizes binary PPM (BPPM) modulation scheme. Furthermore, it is assumed that the receiver thermal noise is non-negligible and that the average signal intensity is large enough to justify a Gaussian approximation at the receiver. Numerical results are presented for the BPPM case to shed light on the impact of turbulence on the overall performance.

Paper Details

Date Published: 12 September 2005
PDF: 14 pages
Proc. SPIE 5892, Free-Space Laser Communications V, 58920S (12 September 2005); doi: 10.1117/12.609593
Show Author Affiliations
Kamran Kiasaleh, The Univ. of Texas at Dallas (United States)

Published in SPIE Proceedings Vol. 5892:
Free-Space Laser Communications V
David G. Voelz; Jennifer C. Ricklin, Editor(s)

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