Outage probability and ergodic capacity of free-space optical links over strong turbulence

2008 ◽  
Vol 44 (1) ◽  
pp. 46 ◽  
Author(s):  
H.G. Sandalidis ◽  
T.A. Tsiftsis
Keyword(s):  
Outage Probability ◽  
Free Space ◽  
Ergodic Capacity ◽  
Free Space Optical ◽  
Optical Links ◽  
Strong Turbulence

Evaluation of the strong turbulence impact over free-space optical links

2013 ◽  
Vol 305 ◽  
pp. 42-47 ◽  
Author(s):  
Gilberto Kirk Rodrigues ◽  
Vítor Gouvêa Andrezo Carneiro ◽  
Alberto Rubin da Cruz ◽  
Maria Thereza M.Rocco Giraldi
Keyword(s):  
Free Space ◽  
Free Space Optical ◽  
Optical Links ◽  
Strong Turbulence

Comparison of Aperture Averaging and Receiver Diversity Techniques for Free Space Optical Links in Presence of Turbulence and Various Weather Conditions

2014 ◽  
Vol 35 (4) ◽  
Author(s):  
Prabhmandeep Kaur ◽  
Virander Kumar Jain ◽  
Subrat Kar
Keyword(s):  
Outage Probability ◽  
Free Space ◽  
Direct Detection ◽  
Weather Conditions ◽  
Free Space Optical ◽  
Aperture Diameter ◽  
Receiver Diversity ◽  
Optical Links ◽  
Diversity Techniques ◽  
Aperture Averaging

AbstractIn this paper, we investigate the performance of a Free Space Optic (FSO) link considering the impairments caused by the presence of various weather conditions such as very clear air, drizzle, haze, fog, etc., and turbulence in the atmosphere. Analytic expression for the outage probability is derived using the gamma-gamma distribution for turbulence and accounting the effect of weather conditions using the Beer-Lambert's law. The effect of receiver diversity schemes using aperture averaging and array receivers on the outage probability is studied and compared. As the aperture diameter is increased, the outage probability decreases irrespective of the turbulence strength (weak, moderate and strong) and weather conditions. Similar effects are observed when the number of direct detection receivers in the array are increased. However, it is seen that as the desired level of performance in terms of the outage probability decreases, array receiver becomes the preferred choice as compared to the receiver with aperture averaging.

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