Gustavo Rodrigues de Lima Tejerina received the B.S. degree in network and communications engineering from the University of Brasilia, Brazil, in 2012, and the M.Sc. and Ph.D. degrees from the State University of Campinas (UNICAMP), Brazil, in 2014 and 2018, respectively. He was a postdoctoral researcher with the Wireless Technology Laboratory (WissTek), UNICAMP, in collaboration with EMBRAER Defense and Security. He was a Researcher with the National Institute of Telecommunications (INATEL), Brazil, where he collaborated within the Brasil 6G Project. He was a postdoctoral researcher at the Centre for Wireless Communications (CWC), University of Oulu, where he was involved in the development of statistical channel models for sub-THz bands for 6G networks. He is currently a researcher with the Wireless Research Center (WRC), Tampere University (TAU), Finland, and is investigating resilient global navigation satellite systems (GNSS) and signal design for low Earth orbit (LEO) satellites. His research interests include wireless communications, signal processing, channel characterization, GNSS, and LEO satellite systems.