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Outage probability and average BER estimation of FSO system employing wavelength diversity

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Abstract

Free space optical (FSO) communication has gained significant attention among researchers for high bandwidth and secured data transfer applications. However, its performance is limited by the local atmospheric conditions. This paper focusses on an FSO system employing a diversity method to compensate signal loss occurred due to atmospheric turbulence conditions varying from moderate to strong. We derive a closed-form expression for two important parameters, viz.: average bit error rate (BER) and outage probability over gamma–gamma distribution channel. The numerical results for different combining schemes are presented in this paper. Enhancement in reliability and performance of FSO communication system with wavelength diversity is investigated. Effect of different wavelengths 850 nm, 1310 nm and 1550 nm on average BER is analysed and minimum BER is achieved for optimal combining at 1550 nm at diversity order \(R=3\).

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Authors and Affiliations

  1. Department of Electronics Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, 395007, India

    Varun Srivastava, Abhilash Mandloi & Gireesh G. Soni

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  1. Varun Srivastava
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  2. Abhilash Mandloi
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  3. Gireesh G. Soni
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Correspondence to Varun Srivastava.

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Srivastava, V., Mandloi, A. & Soni, G.G. Outage probability and average BER estimation of FSO system employing wavelength diversity. Opt Quant Electron 51, 229 (2019). https://doi.org/10.1007/s11082-019-1943-4

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