Reconfigurable 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
@article{arxiv.2211.14882,
title = {Dynamic Programmable Wireless Environment with UAV-mounted Static Metasurfaces},
author = {Prodromos-Vasileios Mekikis and Dimitrios Tyrovolas and Sotiris Tegos and Alexandros Papadopoulos and Alexandros Pitilakis and Sotiris Ioannidis and Ageliki Tsiolaridou and Panagiotis Diamantoulakis and Nikolaos Kantartzis and George K. Karagiannidis and Christos Liaskos},
journal= {arXiv preprint arXiv:2211.14882},
year = {2022}
}