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    Outage performance analysis of underlay cognitive RF and FSO wireless channels

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    Type
    Conference Paper
    Authors
    Ansari, Imran Shafique cc
    Abdallah, Mohamed M.
    Alouini, Mohamed-Slim cc
    Qaraqe, Khalid A.
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Communication Theory Lab
    Date
    2014-09
    Permanent link to this record
    http://hdl.handle.net/10754/564985
    
    Metadata
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    Abstract
    In this work, the outage performance analysis of a dual-hop transmission system composed of asymmetric radio frequency (RF) channel cascaded with a free-space optical (FSO) link is presented. For the RF link, an underlay cognitive network is considered where the secondary users share the spectrum with licensed primary users. Indoor femtocells act as a practical example for such networks. More specifically, it is assumed that the RF link applies power control to maintain the interference at the primary network below a predetermined threshold. While the RF channel is modeled by the Rayleigh fading distribution, the FSO link is modeled by a unified Gamma-Gamma turbulence distribution. The FSO link accounts for pointing errors and both types of detection techniques (i.e. heterodyne detection as well as intensity modulation/direct detection (IM/DD)). With this model, a new exact closed-form expression is derived for the outage probability of the end-To-end signal-To-noise ratio of these systems in terms of the Meijer's G function and the Fox's H functions under fixed amplify-and-forward relay scheme. All new analytical results are verified via computer-based Monte-Carlo simulations and are illustrated by some selected numerical results.
    Citation
    Ansari, I. S., Abdallah, M. M., Alouini, M.-S., & Qaraqe, K. A. (2014). Outage performance analysis of underlay cognitive RF and FSO wireless channels. 2014 3rd International Workshop in Optical Wireless Communications (IWOW). doi:10.1109/iwow.2014.6950766
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2014 3rd International Workshop in Optical Wireless Communications (IWOW)
    Conference/Event name
    2014 3rd International Workshop in Optical Wireless Communications, IWOW 2014
    ISBN
    9781479966769
    DOI
    10.1109/IWOW.2014.6950766
    ae974a485f413a2113503eed53cd6c53
    10.1109/IWOW.2014.6950766
    Scopus Count
    Collections
    Conference Papers; Electrical and Computer Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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