Physical layer security has attracted research attention as a means to achieve secure communication without the need for complicated upper layer encryption techniques. The secure degrees of freedom (SDoF) of various networks in the absence of instantaneous eavesdropper channel state information is still unknown. In this work, we study the SDoF of a multiple access network composed of two transmitters and a single receiver in the presence of an eavesdropper. All parties are equipped with multiple antennas and are subject to Gaussian noise in addition to fading channel conditions. A realistic, worst case scenario, where the channel state information (CSI) for the channels between the trusted parties is known to everyone, while the trusted parties can only estimate the channel statistics (environment based) of the eavesdropper is considered. The asymptotic secure network sum capacity (aka sum SDoF) is provided utilizing a novel proposed comprehensive upperbound along with a novel achievable scheme based on exploiting jamming.


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    Titel :

    Secure DoF for the MIMO MAC: The Case of Knowing Eavesdropper's Channel Statistics Only


    Beteiligte:
    Amir, Mohamed (Autor:in) / Khattab, Tamer (Autor:in) / Yaacoub, Elias (Autor:in) / Abualsaud, Khalid (Autor:in) / Guizani, Mohsen (Autor:in)


    Erscheinungsdatum :

    01.09.2019


    Format / Umfang :

    290718 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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