Motivated by the fact that both security and energy efficiency are the fundamental requirements and design targets of future satellite communications, this letter investigates secure energy efficient beamforming in multibeam satellite systems, where the satellite user in each beam is surrounded by an eavesdropper attempting to intercept the confidential information. To simultaneously improve the transmission security and reduce power consumption, our design objective is to maximize the system secrecy energy efficiency (SEE) under the constraint of total transmit power budget. Different from the existing schemes with high complexity, we propose an alternating optimization scheme to address the SEE problem by decomposing the original nonconvex problem into subproblems. Specifically, we first utilize the signal-to-leakage-plus-noise ratio metric to obtain closed-form normalized beamforming weight vectors, while the successive convex approximation method is used to efficiently solve the power allocation subproblem. Then, an iterative algorithm is proposed to obtain the suboptimal solutions. Finally, simulations are provided to verify the superiority of the proposed scheme compared to the benchmark schemes.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    SLNR-Based Secure Energy Efficient Beamforming in Multibeam Satellite Systems


    Beteiligte:
    Lin, Zhi (Autor:in) / An, Kang (Autor:in) / Niu, Hehao (Autor:in) / Hu, Yihua (Autor:in) / Chatzinotas, Symeon (Autor:in) / Zheng, Gan (Autor:in) / Wang, Jiangzhou (Autor:in)


    Erscheinungsdatum :

    01.04.2023


    Format / Umfang :

    201839 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Opportunistic Beamforming for Multibeam Satellite

    Realp, Marc / Zorba, Nizar / Pérez-Neira, Ana | AIAA | 2008




    Satellite multibeam antenna concept

    BINZ, E. / WAINEO, D. | AIAA | 1976


    Fault-tolerant multibeam photonic beamforming for wideband array antennas

    Riza, N. A. / International Society for Optical Engineering | British Library Conference Proceedings | 2003