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M-Ary Signaling for FSO Under Different Atmospheric Conditions

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Broadband Connectivity in 5G and Beyond

Abstract

This title offers a detailed, coherent coverage covering the latest developments in evolving free-space optics (FSO) technology, an area where awareness and focus are continuing to develop together with the number of new challenges. This chapter is intended as an all-inclusive guide to meet the needs of those who need information about the FSO’s basics, as well as up-to-date technical knowledge of the state-of-the-art technologies available today. This text is intended for graduate students and would also be useful to research scientists and engineers with field interest. FSO connectivity over 5G network is a realistic option for building a regional wireless networking system in three dimensions, providing bandwidths far beyond what is feasible in the radio frequency (RF) spectrum. The characteristics of atmospheric instability and dispersal, however, place persistent limits on the quality and efficiency of FSO links. This pioneering chapter offers a detailed analysis of channel behavior from a network point of view, which can be used to plan and test optimal transmitting strategies that work under practical atmospheric conditions. Topics addressed include basic to advance FSO concepts, challenges, and its applications. It presents analysis of M-ary signaling over the FSO link, under haze condition, clear weather, and foggy condition. It aims to optimize the FSO communication link for channel capacity enhancement to meet the high-bandwidth requirement of the present era over evolving 5G networks. This chapter models 256 quadrature amplitude modulation orthogonal frequency-division multiplexing (QAM-OFDM) FSO link and analyzes its behavior under clear, haze, and foggy conditions. The system outperforms at 2 km with BER 1.5*10−187 and Q-factor 29.16 under haze conditions. Results are good till 3 km with BER 3.4*10−43 and Q-factor 13.69. When atmospheric conditions are foggy, then the system performance is acceptable till 1 km with BER 1.33*10−31 and Q-factor 9.05; beyond that, atmospheric effect has degraded the system performance. Under clear weather condition, system performance is acceptable till 20 km with BER 4.8*10−14, whereas this range is 4 km for haze and 1.1 km for fog condition.

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Authors and Affiliations

  1. Chitkara University Institute of Engineering and Technology, Chitkara University, Patiala, Punjab, India

    Harsimran Jit Kaur & Rubina Dutta

Authors
  1. Harsimran Jit Kaur
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  2. Rubina Dutta
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Correspondence to Harsimran Jit Kaur .

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Editors and Affiliations

  1. Department of Electronics and Communication Engineering, Punjabi University, Patiala, India

    Simranjit Singh

  2. Department of Electronics and Communication Engineering, Chandigarh University, Mohali, India

    Gurpreet Kaur

  3. Electrical Electronic and Systems Engineering, Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, Bangi, Malaysia

    Mohammad Tariqul Islam

  4. Department of Electronics and Communication Engineering, Thapar Institute of Engineering and Technology, Patiala, India

    R.S. Kaler

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Kaur, H.J., Dutta, R. (2022). M-Ary Signaling for FSO Under Different Atmospheric Conditions. In: Singh, S., Kaur, G., Islam, M.T., Kaler, R. (eds) Broadband Connectivity in 5G and Beyond. Springer, Cham. https://doi.org/10.1007/978-3-031-06866-9_4

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  • DOI: https://doi.org/10.1007/978-3-031-06866-9_4

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-031-06865-2

  • Online ISBN: 978-3-031-06866-9

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