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    Performance Analysis of Dual-Hop Underwater Wireless Optical Communication Systems over Mixture Exponential-Generalized Gamma Turbulence Channels

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    Performance Analysis of Dual-Hop Underwater Wireless Optical Communication Systems.pdf
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    Type
    Article
    Authors
    Zedini, Emna cc
    Kammoun, Abla cc
    Soury, Hamza
    Hamdi, Mounir
    Alouini, Mohamed-Slim cc
    KAUST Department
    Communication Theory Lab
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Date
    2020-07-01
    Online Publication Date
    2020-07-01
    Print Publication Date
    2020-09
    Permanent link to this record
    http://hdl.handle.net/10754/663967
    
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    Abstract
    In this work, we present a unified framework for the performance analysis of dual-hop underwater wireless optical communication (UWOC) systems with amplify-and-forward fixed gain relays in the presence of air bubbles and temperature gradients. Operating under either heterodyne detection or intensity modulation with direct detection, the UWOC is modeled by the unified mixture Exponential-Generalized Gamma distribution that we have proposed based on an experiment conducted in an indoor laboratory setup and has been shown to provide an excellent fit with the measured data under the considered lab channel scenarios. More specifically, we derive the cumulative distribution function (CDF) and the probability density function of the end-to-end signal-to-noise ratio (SNR) in exact closed-form in terms of the bivariate Fox’s H function. Based on this CDF expression, we present novel results for the fundamental performance metrics such as the outage probability, the average bit-error rate (BER) for various modulation schemes, and the ergodic capacity. Additionally, very tight asymptotic results for the outage probability and the average BER at high SNR are obtained in terms of simple functions. Furthermore, we demonstrate that the dual-hop UWOC system can effectively mitigate the short range and both temperature gradients and air bubbles induced turbulences, as compared to the single UWOC link. All the results are verified via computer-based Monte-Carlo simulations.
    Citation
    Zedini, E., Kammoun, A., Soury, H., Hamdi, M., & Alouini, M.-S. (2020). Performance Analysis of Dual-Hop Underwater Wireless Optical Communication Systems Over Mixture Exponential-Generalized Gamma Turbulence Channels. IEEE Transactions on Communications, 68(9), 5718–5731. doi:10.1109/tcomm.2020.3006146
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    IEEE Transactions on Communications
    DOI
    10.1109/TCOMM.2020.3006146
    Additional Links
    https://ieeexplore.ieee.org/document/9130772/
    https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9130772
    ae974a485f413a2113503eed53cd6c53
    10.1109/TCOMM.2020.3006146
    Scopus Count
    Collections
    Articles; Electrical and Computer Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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