Dynamic programmable wireless environment with UAV-mounted static metasurfacesDynamic programmable wireless environment with UAV-mounted static metasurfaces Σύντομη Δημοσίευση σε Συνέδριο Conference Short Paper 2024-09-022022enReconfigurable intelligent surfaces (RISs) are artificial planar structures able to offer a unique way of manipulating propagated wireless signals. Commonly composed of a number of reconfigurable passive cell components and basic electronic circuits, RISs can almost freely perform a set of wave modification functionalities, in order to realize programmable wireless environments (PWEs). However, a more energy-efficient way to realize a PWE is through dynamically relocating static metasurfaces that perform a unique functionality. In this paper, we employ a UAV swarm to dynamically deploy a set of lowcost passive metasurfaces that are able to perform only one electromagnetic functionality, but with the benefit of requiring no power. Specifically, the UAV-mounted static metasurfaces are carefully positioned across the sky to create cascaded channels for improved user service and security hardening. The performance evaluation results, based on ray tracing, demonstrate the potential of the proposed method.This work was funded by projects HERMES (EU Horizon 2020, GA 891515), WISAR (Foundation for Research and Technology–Synergy Grants 2022) and COLLABS (EU Horizon 2020, GA 871518).http://creativecommons.org/licenses/by-nc-nd/4.0/2022 IEEE Conference on Standards for Communications and Networking2022 IEEE Conference on Standards for Communications and Networking (CSCN 2022)Mekikis_et_al_CSCN 2022 preprint.pdfChania [Greece]Library of TUC2024-09-02application/pdf2.0 MBfree Mekikis Prodromos-Vasileios Tyrovolas Dimitrios Tegos Sotiris A. Papadopoulos Alexandros Pitilakis Alexandros Ioannidis Sotirios Ιωαννιδης Σωτηριος Tsioliaridou Ageliki Diamantoulakis Panagiotis Kantartzis, Nikolaos V Karagiannidis, George K Liaskos, Christos Institute of Electrical and Electronics Engineers Wireless propagation UAVs Metasurfaces RIS Security Energy efficiency