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    Unified Statistical Channel Model for Turbulence-Induced Fading in Underwater Wireless Optical Communication Systems

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    Type
    Article
    Authors
    Zedini, Emna cc
    Oubei, Hassan M. cc
    Kammoun, Abla cc
    Hamdi, Mounir
    Ooi, Boon S. cc
    Alouini, Mohamed-Slim cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Date
    2019-01-09
    Online Publication Date
    2019-01-09
    Print Publication Date
    2019-04
    Permanent link to this record
    http://hdl.handle.net/10754/630798
    
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    Abstract
    A unified statistical model is proposed to characterize turbulence-induced fading in underwater wireless optical communication (UWOC) channels in the presence of air bubbles and temperature gradient for fresh and salty waters, based on experimental data. In this model, the channel irradiance fluctuations are characterized by the mixture Exponential-Generalized Gamma (EGG) distribution. We use the expectation maximization (EM) algorithm to obtain the maximum likelihood parameter estimation of the new model. Interestingly, the proposed model is shown to provide a perfect fit with the measured data under all channel conditions for both types of water. The major advantage of the new model is that it has a simple mathematical form making it attractive from a performance analysis point of view. Indeed, we show that the application of the EGG model leads to closed-form and analytically tractable expressions for key UWOC system performance metrics such as the outage probability, the average bit-error rate, and the ergodic capacity. To the best of our knowledge, this is the first-ever comprehensive channel model addressing the statistics of optical beam irradiance fluctuations in underwater wireless optical channels due to both air bubbles and temperature gradient.
    Citation
    Zedini, E., Oubei, H. M., Kammoun, A., Hamdi, M., Ooi, B. S., & Alouini, M.-S. (2019). Unified Statistical Channel Model for Turbulence-Induced Fading in Underwater Wireless Optical Communication Systems. IEEE Transactions on Communications, 67(4), 2893–2907. doi:10.1109/tcomm.2019.2891542
    Sponsors
    Authors at KAUST would like to acknowledge the funding support from King Abdulaziz City for Science and Technology \n(KACST) Grant KACST TIC R2-FP-008; King Abdullah University of Science and Technology (KAUST) BAS/1/1614-01-01, KCR/1/2081-01-01, GEN/1/6607-01-01, and REP/1/2878-01-01.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    IEEE Transactions on Communications
    DOI
    10.1109/TCOMM.2019.2891542
    arXiv
    1810.06314
    Additional Links
    https://ieeexplore.ieee.org/document/8606206
    ae974a485f413a2113503eed53cd6c53
    10.1109/TCOMM.2019.2891542
    Scopus Count
    Collections
    Articles; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

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