%0 Journal Article %J Frontiers in Space Technologies %D 2021 %T Editorial: Signal Processing for Beyond 5G Non-Terrestrial Networks %A Carlos Mosquera %A Pantelis-Daniel Arapoglou %B Frontiers in Space Technologies %V 2 %G eng %U https://www.frontiersin.org/articles/10.3389/frspt.2021.780171/full %R 10.3389/frspt.2021.780171