Laser & Optoelectronics Progress, Volume. 57, Issue 5, 050101(2020)
Performance Analysis of Free-Space Optical Communication System under Joint Channel Conditions
The atmospheric environment seriously affects performance of the free space optical communication system. Considering the influence of weather environment, atmospheric turbulence and directivity error on laser communication, we establish a joint channel statistical model, and derive the performance parameters of free space optical communication system based on on-off keying modulation, such as average bit error rate, average channel capacity and outage probability and their closed expressions, using Meijer-G function. The performance parameters of the system are simulated and analyzed under different M turbulences, different normalized pointing errors and visibilities of 5 km and 20 km. The results show that the smaller the directivity error, the greater the influence of turbulence on the performance parameters of the communication systems; the bigger the directivity error, the more likely for a best beam divergence angle existing to make the communication system achieve the best performance.
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Yan Wu, Haiping Mei, Heli Wei. Performance Analysis of Free-Space Optical Communication System under Joint Channel Conditions[J]. Laser & Optoelectronics Progress, 2020, 57(5): 050101
Category: Atmospheric Optics and Oceanic Optics
Received: Jul. 22, 2019
Accepted: Aug. 28, 2019
Published Online: Mar. 5, 2020
The Author Email: Wei Heli (hlwei@aiofm.ac.cn)