In this paper, a novel strategy of relay selection and cooperative jammer beamforming is proposed. The proposed scheme selects one node from the intermediate nodes as relay and the rest nodes as friendly jammers. The relay operates in amplify-and-forward (AF) strategy. Jammer weights are derived to null the jamming signals at the destination and relay node and maximize the jamming signal at the eavesdropper. Furthermore, a closed-form optimal solution of power allocation between the selected relay and cooperative jammers is derived. Numerical simulation results show that the proposed scheme can outperform the conventional schemes at the same power consumption.


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    Title :

    Strategy of Relay Selection and Cooperative Jammer Beamforming in Physical Layer Security


    Contributors:
    Zhang, Ming (author) / Shang, Yong (author) / Zhao, Yaohuan (author)


    Publication date :

    2020-11-01


    Size :

    1248999 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English