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Optical Engineering

Signal estimation for the gamma–gamma turbulence model
Author(s): Sajid S. Muhammad; Bushra Rashid; Allah Ditta Raza
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Paper Abstract

Free space optical links get adversely affected by atmospheric turbulence besides aerosol-based scattering and attenuation, causing signal degradation at the receiving terminal. The gamma–gamma probability density function has been extensively utilized for modeling the received signal strength under all turbulence regimes. An estimator with an underlying gamma–gamma turbulence model is being proposed. For the estimation of optical signal intensity, a minimum mean square error criterion has been used to develop the proposed estimator. It is assumed that the receiver is operating under shot noise–limited conditions, and the received signal is detected using a PIN photodiode.

Paper Details

Date Published: 16 December 2013
PDF: 4 pages
Opt. Eng. 52(12) 120501 doi: 10.1117/1.OE.52.12.120501
Published in: Optical Engineering Volume 52, Issue 12
Show Author Affiliations
Sajid S. Muhammad, FAST NUCES (Pakistan)
Bushra Rashid, FAST NUCES (Pakistan)
Allah Ditta Raza, FAST NUCES (Pakistan)


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