84 research outputs found

    Converging Underwater and FSO Ground Communication Links

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    We propose a new combined underwater-atmospheric optical communication link for providing a high speed optical connectivity between onshore and sumerge systems. New average BER expressions are derived when assuming amplify-and-forward (AF) relay.Universidad de MĂĄlaga. Campus de Excelencia Internacional AndalucĂ­a Tech

    A Unifying Statistical Model for Atmospheric Optical Scintillation

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    In this paper we develop a new statistical model for the irradiance fluctuations of an unbounded optical wavefront (plane and spherical waves) propagating through a turbulent medium under all irradiance fluctuation conditions in homogeneous, isotropic turbulence. The major advantage of the model is that leads to closed-form and mathematically-tractable expressions for the fundamental channel statistics of an unbounded optical wavefront under all turbulent regimes. Furthermore, it unifies most of the proposed statistical models for the irradiance fluctuations derived in the bibliography providing, in addition, an excellent agreement with the experimental data.Comment: An extended version of this paper has been submitted and provisionally accepted for publication in the book under the working title "Numerical Simulations / Book 2", Ed. Intech, ISBN 978-953-307-1423-

    Efecto del desalineamiento en enlaces para comunicaciones entre vehı́culos con luz visible

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    In this paper, the impact of misalignments on visible-light vehicle-to-vehicle (V2V) links is examined. By means of modeling and simulation, the signal-to-noise ratio (SNR) of the V2V channel formed by two vehicles driving in a platoon arrangement on a two-lane road with straight and curved sections is obtained and analyzed. Results show that misalignments caused by road curves can greatly reduce the SNR and, therefore, the link range. However, the SNR reduction can be mitigated using curve adaptive headlights and link range can be increased using higher FOVs
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