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    Enhancing Physical Layer Security of Multiuser SIMO Mixed RF/FSO Relay Networks with Multi-Eavesdroppers

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    Type
    Conference Paper
    Authors
    El-Malek, Ahmed H. Abd
    Salhab, Anas M.
    Zummo, Salam A.
    Alouini, Mohamed-Slim cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Date
    2017-02-09
    Online Publication Date
    2017-02-09
    Print Publication Date
    2016-12
    Permanent link to this record
    http://hdl.handle.net/10754/623180
    
    Metadata
    Show full item record
    Abstract
    In this paper, we investigate the secrecy performance of multiuser (MU) single-input multiple-output (SIMO) mixed radio frequency (RF)/free space optical (FSO) relay network with opportunistic user scheduling and multiple eavesdropping attacks. The considered system includes multiple users, one amplify-and-froward (AF) relay, one destination and multiple eavesdroppers. The users are connected with a multi-antenna relay through RF links and the relay is connected with the destination through an FSO link. Maximal ratio combining (MRC) scheme is used at the relay node to combine the received signals at its different antennas. The RF/FSO channels are assumed to follow Nakagami-m/Gamma-Gamma fading models with considering the effect of pointing errors. In particular, we derive closed- form expressions for the exact and asymptotic outage probabilities. The asymptotic outage results are then used to obtain the optimal RF transmission power based on the dominant link between the RF and FSO links. Then, the considered system secrecy performance is investigated in the presence of multi- eavesdroppers where exact closed-form expression for the intercept probability is derived. Finally, a cooperative jamming model is proposed along with power allocation to enhance the system secrecy performance. Monte-Carlo simulations are provided to validate the achieved exact and asymptotic results.
    Citation
    El-Malek AHA, Salhab AM, Zummo SA, Alouini M-S (2016) Enhancing Physical Layer Security of Multiuser SIMO Mixed RF/FSO Relay Networks with Multi-Eavesdroppers. 2016 IEEE Globecom Workshops (GC Wkshps). Available: http://dx.doi.org/10.1109/GLOCOMW.2016.7848894.
    Sponsors
    This work was funded by the National Plan for Science, Technology and Innovation (Maarifah) - King Abdulaziz City for Science and Technology - through the Science and Technology Unit at King Fahd University of Petroleum & Minerals (KFUPM) - the Kingdom of Saudi Arabia, under grant number 15-ELE4157-04. The authors would like also to acknowledge the KFUPM-KAUST research initiative resulted from this research work.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2016 IEEE Globecom Workshops (GC Wkshps)
    Conference/Event name
    2016 IEEE Globecom Workshops, GC Wkshps 2016
    DOI
    10.1109/GLOCOMW.2016.7848894
    Additional Links
    http://ieeexplore.ieee.org/document/7848894/
    ae974a485f413a2113503eed53cd6c53
    10.1109/GLOCOMW.2016.7848894
    Scopus Count
    Collections
    Conference Papers; Electrical and Computer Engineering Program; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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