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Effects of atmospheric weather and turbulence in MSK based FSO communication system for last mile users

Author

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  • Debanjan Sarkar

    (National Institute of Technology Arunachal Pradesh)

  • Sanjeev Kumar Metya

    (National Institute of Technology Arunachal Pradesh)

Abstract

In this paper, a minimum shift keying (MSK) based free space optical (FSO) communication system for the terrestrial user is modeled. In our setup 10 Gbps downlink MSK modulated signal is transmitted first over 100 km dispersion shifted fiber and then the area where deployment of fiber is not possible due to some constraints, FSO link is used to transmit the data to the last mile users. FSO link suffers from various weather conditions and atmospheric turbulence i.e. scintillation effect. Hence, both the cases are considered to transmit the data through FSO link to the end users and Gamma–Gamma fading model is used to study the scintillation effect. FSO link range is optimized to analyze the behaviour of the proposed system for six different weather conditions over weak, moderate and strong turbulence using BER curves and eye diagrams. Also, from the base station uplink data is modulated by MSK and is transmitted back to central station via same fiber and detected successfully.

Suggested Citation

  • Debanjan Sarkar & Sanjeev Kumar Metya, 2020. "Effects of atmospheric weather and turbulence in MSK based FSO communication system for last mile users," Telecommunication Systems: Modelling, Analysis, Design and Management, Springer, vol. 73(1), pages 87-93, January.
    • Handle: RePEc:spr:telsys:v:73:y:2020:i:1:d:10.1007_s11235-019-00602-7
    DOI: 10.1007/s11235-019-00602-7
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