Analysis of Free Space Optics Link Performance Considering the Effect of Different Weather Conditions and Modulation Formats for Terrestrial Communication

2020 ◽  
Vol 41 (4) ◽  
pp. 463-468 ◽  
Author(s):  
Sanmukh Kaur ◽  
Amayika Kakati
Keyword(s):  
Free Space ◽  
Weather Conditions ◽  
Index Of Refraction ◽  
Free Space Optics ◽  
Modulation Formats ◽  
Space Optics ◽  
Link Performance ◽  
Dense Fog ◽  
Log Normal ◽  
Research Analysis

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.

Link performance analysis of experimental LED based Free Space Optics

2011 ◽  
Author(s):  
Mazlaini Yahya ◽  
M. Kamarulzamin Salleh ◽  
Noor Aisyah M. Akib ◽  
Syed Al-Firdaus Jamalullail ◽  
Zaiki Awang
Keyword(s):  
Performance Analysis ◽  
Free Space ◽  
Free Space Optics ◽  
Space Optics ◽  
Link Performance

Improved Performance Analysis of Free Space Optics Communication Link under Rain Conditions using EDFA Pre-amplifier

2018 ◽  
Vol 39 (2) ◽  
pp. 241-246 ◽  
Author(s):  
Mehtab Singh
Keyword(s):  
Performance Analysis ◽  
Free Space ◽  
Weather Conditions ◽  
Fiber Amplifier ◽  
Free Space Optics ◽  
Communication Link ◽  
Erbium Doped Fiber Amplifier ◽  
Space Optics ◽  
Link Distance ◽  
Improved Performance

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.

Design of high speed multistream free space optics link under clear weather conditions

2020 ◽  
Vol 3 (3/4) ◽  
pp. 195
Author(s):  
Shantanu Jagdale ◽  
Brijesh Iyer ◽  
Sanjay L. Nalbalwar ◽  
Shankar B. Deosarkar
Keyword(s):  
Free Space ◽  
High Speed ◽  
Weather Conditions ◽  
Free Space Optics ◽  
Space Optics ◽  
Clear Weather

Performance analysis of NRZ and RZ variants for FSO communication system under different weather conditions

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Nehall Sadiq ◽  
Akhtar Hussain ◽  
Farhan Qamar ◽  
Romana Shahzadi ◽  
Mudassar Ali ◽  
...  
Keyword(s):  
Weather Conditions ◽  
Performance Comparison ◽  
Free Space Optics ◽  
Q Factor ◽  
Modulation Formats ◽  
Space Optics ◽  
Data Rates ◽  
Network Flexibility ◽  
Viable Approach ◽  
Quality Factor Q

AbstractThe evolving 5G technology is currently facing some huge challenges such as cost, bandwidth, network flexibility, deployment and capacity. Free space optics (FSO) is an emerging technology and viable approach to address the challenges of upcoming networks. This paper presents the performance comparison of advance variants of Return to zero (RZ) and Non-return to zero (NRZ) modulation formats in FSO communication. Detailed analysis of FSO link is carried out under various weather conditions by means of numerical simulations in which different data rates and distances are tested to evaluate the performance. The effects of different weather conditions over the performance, efficiency and availability of FSO link are analyzed on the basis of quality factor (Q-factor) of received signal. The work is performed on the licensed version of Optisystem v14.0.

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