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Secure Communication for Uplink Cellular Networks Assisted with Full-Duplex Device-to-Device User

Author

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  • Xin Song

    (Engineering Optimization and Smart Antenna Institute, Northeastern University, Qinhuangdao 066004, China
    School of Computer Science and Engineering, Northeastern University, Shenyang 110819, China)

  • Lin Xia

    (Engineering Optimization and Smart Antenna Institute, Northeastern University, Qinhuangdao 066004, China
    School of Computer Science and Engineering, Northeastern University, Shenyang 110819, China)

  • Siyang Xu

    (Engineering Optimization and Smart Antenna Institute, Northeastern University, Qinhuangdao 066004, China
    School of Computer Science and Engineering, Northeastern University, Shenyang 110819, China)

  • Yue Wang

    (Engineering Optimization and Smart Antenna Institute, Northeastern University, Qinhuangdao 066004, China
    School of Computer Science and Engineering, Northeastern University, Shenyang 110819, China)

Abstract

In this paper, the secure communication based on the full-duplex (FD) device-to-device (D2D) in cellular networks is proposed. For the proposed scheme, the novel model is established, in which a D2D user is played as a relay operating in FD mode to assist in the secure transmission of uplink information. Considering that the D2D user as a relay is untrusted, D2D link rate maximization is formulated with the constraint of secrecy rate, which ensures the security of uplink cellular networks. To cope with the optimization problem, the optimal power allocation factors of the cellular user (CU) and the D2D user are jointly optimized. Firstly, by using the monotonicity of the objective function, the optimal solution of the power allocation factor at the D2D user can be obtained. Subsequently, the closed-form expression of the optimal power allocation factor at the CU is derived and verified that the solution is the global minimum point. Simulation results verify that the proposed scheme has better output performance than the conventional scheme.

Suggested Citation

  • Xin Song & Lin Xia & Siyang Xu & Yue Wang, 2020. "Secure Communication for Uplink Cellular Networks Assisted with Full-Duplex Device-to-Device User," Future Internet, MDPI, vol. 12(10), pages 1-13, October.
    • Handle: RePEc:gam:jftint:v:12:y:2020:i:10:p:175-:d:430869
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    Cited by:

    1. Wei-Shun Liao & Ou Zhao & Keren Li & Hikaru Kawasaki & Takeshi Matsumura, 2023. "Implementation of In-Band Full-Duplex Using Software Defined Radio with Adaptive Filter-Based Self-Interference Cancellation," Future Internet, MDPI, vol. 15(11), pages 1-19, November.

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