Optimal unmanned aerial vehicle (UAV) placement is studied for a dual-hop wireless regenerative relaying system in which a UAV acts as a relay to forward the messages from a base station (BS) to a mobile station (MS). The hops are assumed to be subject to independent Rayleigh fading. First, the problem of UAV placement is formulated as a convex optimization problem to minimize the outage probability of the MS with the distance constraints of BS and UAV, respectively. Then, the classical KKT condition is utilized to obtain the closed-form expression of the optimal UAV position. More importantly, under the same channel parameters and antenna parameter of each hop, we conclude that the optimal UAV placement is only determined by the transmit power ratio between the BS and UAV. Finally, simulation results verify the effectiveness of the proposed approach.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Optimal relay placement for UAV-assisted wireless regenerative communication system


    Contributors:
    Wei, Wei (author) / Chen, Shukang (author) / Yan, Jun (author) / Ouyang, Jian (author) / Zhu, Wei-ping (author)


    Publication date :

    2017-07-01


    Size :

    162114 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Optimal Time Allocation in Relay Assisted Backscatter Communication Systems

    Lyu, Bin / Yang, Zhen / Xie, Tianyi et al. | IEEE | 2018


    Power-Efficient UAV Placement in Relay Assisted Heterogeneous Public Safety Networks

    Iqbal, Yasir / Ahmad, Ayaz / Kaleem, Zeeshan | Springer Verlag | 2022


    Relay-Satellite-Assisted LEO Constellation NOMA Communication System

    Zhang, Xuyang / Yue, Xinwei / Han, Zhihao et al. | IEEE | 2025


    Optimal 3-D Aerial Relay Placement for Multi-User MIMO Communications

    Michailidis, Emmanouel T. / Nomikos, Nikolaos / Bithas, Petros S. et al. | IEEE | 2019


    WIRELESS RELAY SYSTEM

    FUJII TERUYA | European Patent Office | 2018

    Free access