We consider multiple unmanned aerial vehicles (UAVs) serving a density of ground terminals (GTs) as mobile base stations. The objective is to minimize the outage probability of GT-to-UAV transmissions. In this context, the optimal placement of UAVs under different UAV altitude constraints and GT densities is studied. First, using a random deployment argument, a general upper bound on the optimal outage probability is found for any density of GTs and any number of UAVs. Lower bounds on the performance of optimal deployments are also determined. The upper and lower bounds are combined to show that the optimal outage probability decays exponentially with the number of UAVs for GT densities with finite support. Next, the structure of optimal deployments are studied when the common altitude constraint is large. In this case, for a wide class of GT densities, it is shown that all UAVs should be placed to the same location in an optimal deployment. A design implication is that one can use a single multi-antenna UAV as opposed to multiple single-antenna UAVs without loss of optimality. Numerical optimization of UAV deployments are carried out using particle swarm optimization. Simulation results are also presented to confirm the analytical findings.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Outage-Optimized Deployment of UAVs


    Beteiligte:


    Erscheinungsdatum :

    01.09.2019


    Format / Umfang :

    362411 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Collaborative Trajectory Optimization for Outage-aware Cellular-Enabled UAVs

    Chapnevis, Amirahmad / Guvenc, Ismail / Njilla, Laurent et al. | IEEE | 2021


    Power Efficient Deployment of VLC-enabled UAVs

    Zhu, Zhiyu / Yang, Yang / Guo, Caili et al. | IEEE | 2020



    Remote deployment and monitoring of ground sensors from UAVs

    Edwards, Clive / Robinson, Colin | SPIE | 2003