Underwater optical communication (UWOC) is a potential solution for broadband connectivity in oceans and seas for underwater applications providing high data rate transmission with low latency and high reliability. Recent measurement campaigns suggest generalized Gamma distribution as a viable model for oceanic turbulence. In this paper, we analyze the performance of a UWOC system by modeling the vertical underwater link as a multi-layer cascaded channel, each distributed according to independent but not identically distributed (i.ni.d.) generalized Gamma random variables and considering the zero bore-sight model for pointing errors. We derive analytical expressions for probability density function (PDF) and cumulative distribution function (CDF) for the signal-to-noise ratios (SNR) of the combined channel and develop performance metrics of the considered UWOC system using outage probability, average bit error rate (BER), and ergodic capacity. We also derive the asymptotic expressions for outage probability and average BER to determine the diversity order of the proposed system for a better insight into the system performance. We use Monte-Carlo simulation results to validate our exact and asymptotic expressions and demonstrate the performance of the considered underwater UWOC system using measurement-based parametric data available for turbulent oceanic channels.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Optical Wireless Transmissions over Multi-layer Underwater Channels with Generalized Gamma Fading


    Contributors:


    Publication date :

    2022-06-01


    Size :

    511007 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    RIS-Assisted Vehicular Network with Direct Transmission over Double-Generalized Gamma Fading Channels

    Chapala, Vinay Kumar / Malik, Arsalan / Zafaruddin, S. M. | IEEE | 2022


    Multi-IRS Empowered Terahertz Wireless Communication over Generalized Fading

    Premanand, Rithwik / Vishwakarma, Narendra / Singh, Ranjan et al. | IEEE | 2024