Title :
The effect of atmospheric turbulence on the performance of the free space optical communications
Author :
Motlagh, A. Chaman ; Ahmadi, V. ; Ghassemlooy, Z. ; Abedi, K.
Author_Institution :
Dept. of Electr. Eng., Tarbiat Modares Univ., Tehran
Abstract :
In free space optical (FSO) communication links, atmospheric turbulence has a significant impact on the quality of a laser beam propagating through the atmosphere. Turbulence results in intensity scintillation, which can severely impair the operation of target designation and FSO communications systems. Two important parameters for describing quality of FSO communications systems are the signal-to-noise ratio (SNR) and the bit error rate (BER). In this paper, using a modified model we analyze the effect of atmospheric turbulence on the SNR and BER for an FSO system in both weak and strong turbulence conditions.
Keywords :
atmospheric optics; atmospheric turbulence; error statistics; optical links; atmospheric turbulence; bit error rate; free space optical communications; laser beam propagation; signal-to-noise ratio; target designation operation; Bit error rate; Fluctuations; Laser beams; Laser theory; Optical attenuators; Optical fiber communication; Optical propagation; Optical refraction; Optical scattering; Refractive index;
Conference_Titel :
Communication Systems, Networks and Digital Signal Processing, 2008. CNSDSP 2008. 6th International Symposium on
Conference_Location :
Graz
Print_ISBN :
978-1-4244-1875-6
Electronic_ISBN :
978-1-4244-1876-3
DOI :
10.1109/CSNDSP.2008.4610725
