Improvement of bit error rate in free space optical link

2016 ◽  
Author(s):  
Marek Novak ◽  
Lukas Janik ◽  
Lucie Hudcova ◽  
Otakar Wilfert ◽  
Ales Dobesch
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Free Space ◽  
Free Space Optical ◽  
Optical Link

Bit error rate performance of free-space optical link under effect of plasma sheath turbulence

2017 ◽  
Vol 396 ◽  
pp. 1-7 ◽  
Author(s):  
Jiangting Li ◽  
Shaofei Yang ◽  
Lixin Guo ◽  
Mingjian Cheng ◽  
Teng Gong
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Free Space ◽  
Plasma Sheath ◽  
Rate Performance ◽  
Free Space Optical ◽  
Optical Link

scholarly journals Bit Error Rate Analysis of Different Modulation Schemes in Free Space Optics Link using Gamma-Gamma Turbulence Model

2019 ◽  
Vol 8 (4) ◽  
pp. 8292-8295
Keyword(s):  
Phase Shift ◽  
Gamma Distribution ◽  
Bit Error Rate ◽  
Error Rate ◽  
Free Space ◽  
Channel Model ◽  
Distribution Model ◽  
Phase Shift Keying ◽  
Free Space Optical ◽  
Shift Keying

Free Space Optical (FSO) link using gamma-gamma channel model has been studied in this paper. Comparison of the probability density function of gamma-gamma distribution under weak and strong turbulence regime has been performed. Performance of Bit error rate (BER) using different subcarrier-intensity modulation (SIM) schemes such as binary phase shift keying (BPSK), M-ary phase shift keying (M-PSK) and quadrature amplitude modulation (QAM) have been also investigated. Using MATLAB software, the BER is plotted with respect to normalized signal to noise ratio (SNR) and the link distance. All the analysis has been done using the Gamma-Gamma distribution model. In this work we found that the effectiveness of each modulation technique depends on the environment.

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