This paper considers multiple-input multiple-output (MIMO) full-duplex (FD) two-way secrecy systems. Specifically, both multi-antenna FD legitimate nodes exchange their own confidential message in the presence of an eavesdropper. Taking into account the imperfect channel state information (CSI) of the eavesdropper, we formulate a robust sum secrecy rate maximization (RSSRM) problem subject to the outage probability constraint of the achievable sum secrecy rate and the transmit power constraint. Unlike other existing channel uncertainty models, e.g., norm- bounded and Gaussian-distribution, we exploit a moment-based random distributed CSI uncertainty model to recast our formulate RSSRM problem into convex optimization frameworks based on a Markov's inequality and robust conic reformulation, i.e., semidefinite programming (SDP). In addition, difference-of-concave (DC) approximation is employed to iteratively tackle the transmit covariance matrices of these legitimate nodes. Simulation results are provided to validate our proposed FD approaches.


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    Titel :

    Robust Sum Secrecy Rate Optimization for MIMO Two-Way Full Duplex Systems


    Beteiligte:
    Chu, Zheng (Autor:in) / Le, Tuan Anh (Autor:in) / Nguyen, Huan X. (Autor:in) / Nallanathan, Arumugam (Autor:in) / Karamanoglu, Mehmet (Autor:in)


    Erscheinungsdatum :

    2017-09-01


    Format / Umfang :

    197112 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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