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Link performance evaluation of terrestrial FSO model for predictive deployment in Bhubaneswar smart city under various weather conditions of tropical climate

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Abstract

This paper proposes the link performance analysis of the terrestrial free-space optic (FSO) model, intended for deployment in Bhubaneswar smart city. The challenges of atmospheric adversity and its impact on the performance of FSO model have been analyzed from the real-time measured visibility data. A comparative study of different statistical models addressing the relation between measured visibility data and atmospheric attenuation has been carried out. The atmospheric losses such as haze, scintillation, rain, fog are considered for the link analysis due to the tropical savanna climate of the Bhubaneswar city. Thereafter the link margin is calculated for summer, rainy, winter season for the feasible establishment of FSO link. Comparison between two low absorption optical wavelengths such as 850 nm and 1550 nm has been considered for performance analysis. This is because of the commercial availability of optical components. Performance metrics such as received signal power, bit error rate (BER), signal to noise ratio (SNR), link margin has been used for the link performance analysis for a best fit FSO model for deployment in the city. Finally, the maximum achievable data rate is calculated for FSO link in all the three seasons for ensuring high-quality network reach.

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Acknowledgements

The authors of the paper are very much thankful to the Indian meteorological department (IMD) for providing the real time data for the analysis and performance measuring of the FSO system. Also, the authors are very much thankful to Dr Prasant Kumar Sahu, IIT Bhubaneswar for his valuable support and guidance.

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  1. Department of Electronics and Telecommunication Engineering, IIIT Bhubaneswar, Gothapatna, 751003, India

    Jagana Bihari Padhy & Bijayananda Patnaik

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  1. Jagana Bihari Padhy
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  2. Bijayananda Patnaik
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Correspondence to Bijayananda Patnaik.

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Padhy, J.B., Patnaik, B. Link performance evaluation of terrestrial FSO model for predictive deployment in Bhubaneswar smart city under various weather conditions of tropical climate. Opt Quant Electron 53, 82 (2021). https://doi.org/10.1007/s11082-020-02702-0

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