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    Precise outage analysis of mixed RF/unified-FSO DF relaying with HD and 2 IM-DD channel models

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    Type
    Conference Paper
    Authors
    Al-Ebraheemy, Omer Mahmoud S.
    Salhab, Anas M.
    Chaaban, Anas cc
    Zummo, Salam A.
    Alouini, Mohamed-Slim cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Date
    2017-07-20
    Online Publication Date
    2017-07-20
    Print Publication Date
    2017-06
    Permanent link to this record
    http://hdl.handle.net/10754/625696
    
    Metadata
    Show full item record
    Abstract
    This paper derives and analyzes the outage probability of mixed radio frequency (RF)/unified free space optical (FSO) dual-hop decode-and-forward (DF) relaying scheme, where heterodyne detection (HD) and intensity modulation-direct detection (IM-DD) are considered for FSO detection. In doing that, we correctly utilize, for the first time to the best of our knowledge, a precise channel capacity result for the IM-DD channel. Moreover, this is the first time that not only the (IM-DD input-independent) but also the (IM-DD cost-dependent) AWGN channel is considered in such system analysis. This work assumes that the first hop (RF link) follows Naka-gami-m fading, while the second hop (FSO link) follows Málaga (M) turbulence with pointing error. These fading and turbulence models include other ones (such as Rayleigh fading and Gamma-Gamma turbulence) as special cases, so our analysis can be considered as a generalized one from both RF and FSO fading models point of view. Additionally, the system outage probability is investigated asymptotically in high signal-to-noise ratio (SNR) regime, where a new non-reported diversity order and coding gain analysis are shown. Interestingly, we find that in the FSO hop, based on SNR, the HD or IM-DD cost-dependent results in a same diversity order which is twice the one of IM-DD input-independent. However, based on transmitted power all these FSO detectors result in a same diversity order. Furthermore, we offer simulation results which confirm the derived exact and asymptotic expressions.
    Citation
    Al-Ebraheemy OMS, Salhab AM, Chaaban A, Zummo SA, Alouini M-S (2017) Precise outage analysis of mixed RF/unified-FSO DF relaying with HD and 2 IM-DD channel models. 2017 13th International Wireless Communications and Mobile Computing Conference (IWCMC). Available: http://dx.doi.org/10.1109/IWCMC.2017.7986453.
    Sponsors
    This work was funded by the National Plan for Science, Technology and Innovation (Maarifah) - King Abdulaziz City for Science and Technology - thru the Science & Technology Unit at King Fahd University of Petroleum & Minerals (KFUPM) - the Kingdom of Saudi Arabia, under grant number 15-ELE4157-04.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2017 13th International Wireless Communications and Mobile Computing Conference (IWCMC)
    Conference/Event name
    13th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2017
    DOI
    10.1109/IWCMC.2017.7986453
    Additional Links
    http://ieeexplore.ieee.org/document/7986453/
    ae974a485f413a2113503eed53cd6c53
    10.1109/IWCMC.2017.7986453
    Scopus Count
    Collections
    Conference Papers; Electrical Engineering Program; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

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