Unmanned aerial vehicle (UAV)-assisted simultaneous wireless information and power transfer (SWIPT) systems have recently gained significant attraction in internet-of-things (IoT) applications that have limited or no infrastructure. Specifically, the free mobility of UAVs in three-dimensional (3D) space allows us good-quality channel links, thereby enhancing the communication environment and improving performance in terms of achievable rates, latency, and energy efficiency. Meanwhile, IoT devices can extend their battery life by harvesting the energy following the SWIPT protocol, which leads to an increase in the overall system lifespan. In this paper, we propose a secure UAV-assisted SWIPT system designed to optimize the secrecy energy efficiency (SEE) of a ground network, wherein a base station (BS) transmits confidential messages to an energy-constrained device in the presence of a passive eavesdropper. Here, we employ a UAV acting as a helper node to improve the SEE of the system and to aid in the energy harvesting (EH) of the battery-limited ground device following the SWIPT protocol. To this end, we formulate the SEE maximization problem by jointly optimizing the transmit powers of the BS and UAV, the power-splitting ratio for EH operations, and the UAV’s flight path. The solution is obtained via a proposed algorithm that leverages successive convex approximation (SCA) and Dinkelbach’s method. Through simulations, we corroborate the feasibility and effectiveness of the proposed algorithm compared to conventional partial optimization approaches.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Secrecy Energy Efficiency Maximization for Secure Unmanned-Aerial-Vehicle-Assisted Simultaneous Wireless Information and Power Transfer Systems


    Beteiligte:
    Daehan Ha (Autor:in) / Seongah Jeong (Autor:in) / Jinkyu Kang (Autor:in) / Joonhyuk Kang (Autor:in)


    Erscheinungsdatum :

    2023




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt




    Secrecy Energy Efficiency Maximization in Multi-RIS-Aided SWIPT Wireless Network

    Nwufo, Chukwuemeka / Sun, Yichuang / Simpson, Oluyomi et al. | IEEE | 2023


    Secure unmanned aerial vehicle flight planning

    CARRAWAY PRECIA / DANIALI ALI | Europäisches Patentamt | 2023

    Freier Zugriff

    SECURE UNMANNED AERIAL VEHICLE FLIGHT PLANNING

    CARRAWAY PRECIA / DANIALI ALI | Europäisches Patentamt | 2020

    Freier Zugriff

    Unmanned aerial vehicle wireless charging control method, unmanned aerial vehicle and unmanned aerial vehicle system

    ZUO ZHIPING / LI XIAOFEI / YANG XIN | Europäisches Patentamt | 2023

    Freier Zugriff