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논문 기본 정보

자료유형
학술저널
저자정보
M. Vinoth Kumar (SRM Institute of Science and Technology) Vinod Kumar (SRM Institute of Science and Technology)
저널정보
대한전자공학회 IEIE Transactions on Smart Processing & Computing IEIE Transactions on Smart Processing & Computing Vol.11 No.1
발행연도
2022.2
수록면
64 - 72 (9page)
DOI
10.5573/IEIESPC.2021.11.1.64

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초록· 키워드

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The aim of this research is to investigate the performance of a hybrid fiber-optical (FO) and free-space optical (FSO) communication system to reach the last mile, as well as to propose a technique to overcome atmospheric attenuation. Installing transmission cables between buildings is costly and difficult, but FSO technology can be implemented where fiber-optic cables cannot be installed. This work considers attenuation effects in weather conditions such as haze, thin fog, thick fog, and heavy fog. A single FSO channel (1*1), dual FSO channels (2*2), and four FSO channels (4*4) are cascaded in a fiber optic channel to reach the last mile and to mitigate attenuation in signal transmission over free space. The Q-factor, bit error rate (BER) at the receiver, and eye diagrams were analyzed for all cases. This system is demonstrated up to 3.5km FSO channel range for haze and thin fog conditions and 2.2km and 1.7km range for thick and heavy fog conditions. The system results show improvement in BER as 4.93e-040 for 1*1 FSO channel, 1.07e-078 for 2*2 FSO channel, and 1.28e-154 for 4*4 FSO channel in case of 22dB/km atmospheric attenuation for 1.4km range with minimum power penalty. A data stream of 10 Gbps was transmitted under four attenuation conditions, and the results show that 4*4 FSO channels have a better Q-factor and BER than other systems.

목차

Abstract
1. Introduction
2. Related Work
3. System Design
4. Estimation of FSO System Parameters and Atmospheric Attenuations
5. Results and Discussion
6. Conclusion
References

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