Signal estimation for the gamma–gamma turbulence model

Sajid S. Muhammad; Bushra Rashid; Allah Ditta Raza

doi:10.1117/1.OE.52.12.120501

16 December 2013 Signal estimation for the gamma–gamma turbulence model

Sajid S. Muhammad, Bushra Rashid, Allah Ditta Raza

Author Affiliations +

Optical Engineering, Vol. 52, Issue 12, 120501 (December 2013). https://doi.org/10.1117/1.OE.52.12.120501

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.

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Sajid S. Muhammad, Bushra Rashid, and Allah Ditta Raza "Signal estimation for the gamma–gamma turbulence model," Optical Engineering 52(12), 120501 (16 December 2013). https://doi.org/10.1117/1.OE.52.12.120501

Published: 16 December 2013

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