Link performance analysis of experimental LED based Free Space Optics

Author(s):  
Mazlaini Yahya ◽  
M. Kamarulzamin Salleh ◽  
Noor Aisyah M. Akib ◽  
Syed Al-Firdaus Jamalullail ◽  
Zaiki Awang
2018 ◽  
Vol 39 (2) ◽  
pp. 241-246 ◽  
Author(s):  
Mehtab Singh

AbstractFree Space Optics (FSO) also known as Optical Wireless Communication (OWC) is a communication technology in which free space/air is used as the propagation medium and optical signals are used as the information carriers. One of the most crucial factors which degrade the performance of FSO link is the signal attenuation due to different atmospheric weather conditions such as haze, rain, storm, and fog. In this paper, an improved performance analysis of a 2.5 Gbps FSO link under rain conditions has been reported using Erbium-Doped Fiber Amplifier (EDFA) as a pre-amplifier. The results show that the maximum link distance for an FSO link under rain weather conditions with acceptable performance levels (Q$$\sim6$$and BER$$ \le {10^{- 9}})$$in the absence of EDFA pre-amplifier is 1,250 m which increases to 1,675 m with the use of EDFA pre-amplifier.


2019 ◽  
Vol 6 (3) ◽  
pp. 167-175 ◽  
Author(s):  
Salim Burdah ◽  
Octarina Nur Samijayani ◽  
Ary Syahriar ◽  
Rizki Ramdhani ◽  
Rahmat Alamtaha

2013 ◽  
Vol 33 (9) ◽  
pp. 0906004 ◽  
Author(s):  
胡庆松 Hu Qingsong ◽  
黄玉划 Huang Yuhua ◽  
王俊波 Wang Junbo ◽  
张净 Zhang Jing ◽  
姜鹏 Jiang Peng ◽  
...  

2020 ◽  
Vol 41 (4) ◽  
pp. 463-468 ◽  
Author(s):  
Sanmukh Kaur ◽  
Amayika Kakati

AbstractFree space optics (FSO) links provide an effectual and efficient way of transmission of data throughout free channels due to its higher bandwidth and inbuilt capability of security. In this research analysis, the FSO link is evaluated on the basis of Q value for different modulation formats and weather conditions. Gamma–Gamma and log-normal scintillation models have been analyzed for different index of refraction in terms of Q factor versus a range of a proposed FSO link. Attenuation increases during the occurrence of different fog conditions, and there might be complete link failure in the case of dense fog and for some of the cloud conditions.


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