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    On the secrecy capacity of the broadcast wiretap channel with imperfect channel state information

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    Type
    Conference Paper
    Authors
    Hyadi, Amal cc
    Rezki, Zouheir cc
    Khisti, Ashish J.
    Alouini, Mohamed-Slim cc
    KAUST Department
    Communication Theory Lab
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2014-12
    Permanent link to this record
    http://hdl.handle.net/10754/565011
    
    Metadata
    Show full item record
    Abstract
    In this paper, we consider secure broadcasting over fast fading channels. Assuming imperfect main channel state information (CSI) at the transmitter, we first provide an upper and a lower bounds on the ergodic secrecy capacity when a common message is broadcasted to multiple legitimate receivers in the presence of one eavesdropper. For this case, we show that the secrecy rate is limited by the legitimate receiver having, on average, the worst main channel link. Then, we present an expression for the achievable secrecy sum-rate when each legitimate receiver is interested in an independent message. The special cases of high SNR, perfect and no-main CSI are also analyzed. Numerical results are presented to illustrate the obtained results for the case of independent but not necessarily identically distributed Rayleigh fading channels.
    Citation
    Hyadi, A., Rezki, Z., Khisti, A., & Alouini, M.-S. (2014). On the secrecy capacity of the broadcast wiretap channel with imperfect channel state information. 2014 IEEE Global Communications Conference. doi:10.1109/glocom.2014.7037038
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2014 IEEE Global Communications Conference
    Conference/Event name
    2014 IEEE Global Communications Conference, GLOBECOM 2014
    ISBN
    9781479935116
    DOI
    10.1109/GLOCOM.2014.7037038
    ae974a485f413a2113503eed53cd6c53
    10.1109/GLOCOM.2014.7037038
    Scopus Count
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Electrical and Computer Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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