We consider in this paper the physical layer security in multi-user massive multiple-input multiple-output (MU-Massive-MIMO) system, where an eavesdropper (Eve) is assumed to be able to intercept the information intended to any of the users. Distributed antenna sets, commonly known as remote radio heads (RRHs), are deployed at the base station, which enables autonomous power allocation between the information signal and artificial noise (AN) at each antenna set. Assuming a large number of antennas at each RRH and cooperative downlink maximum-ratio transmission beamforming, we first derive the closed-form deterministic equivalents of post-processing signal to interference-plus-noise ratio (SINR) of users and Eve in both the centralized and autonomous full transmission schemes. Then, we maximize the minimum user SINR over the signal and AN powers subject to the sum power and Eve SINR constraints. The optimization in the former scheme leads to a linear programming problem, while the latter results in a complementary geometric programming (GP), which has to be transformed into an ordinary GP problem in order to be solved efficiently. Numerical results demonstrate the significance of deploying the RRHs as well as autonomous power allocation to improve the user SINR along with the secure communication with QoS guarantee in MU-Massive-MIMO.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Distributed Antennas Aided Secure Communication in MU-Massive-MIMO with QoS Guarantee


    Contributors:
    Guo, Kaifeng (author) / Guo, Yan (author) / Ascheid, Gerd (author)


    Publication date :

    2015-09-01


    Size :

    341079 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English





    Distributed energy guarantee system

    WANG LU / CAO YUE / ZHU WENKUI et al. | European Patent Office | 2025

    Free access

    Data-Aided LS Channel Estimation in Massive MIMO Turbo-Receiver

    Osinsky, Alexander / Ivanov, Andrey / Lakontsev, Dmitry et al. | IEEE | 2020


    MU-Massive MIMO for UWA Communication

    Bocus, Mohammud J. / Doufexi, Angela / Agrafiotis, Dimitris | IEEE | 2018