UWINGABIRE, Donathe; KIBAMBI, Stephen; ABSALOMS, Heywood Ouma. Enhanced Channel Estimation in RIS-Aided OFDM Systems Using DFT-Based Pilot Optimization under Practical Hardware Constraints. Engineering, Technology & Applied Science Research, Greece, v. 16, n. 3, p. 36006–36013, 2026. DOI: 10.48084/etasr.18638. Disponível em: https://www.etasr.com/index.php/ETASR/article/view/18638. Acesso em: 9 jun. 2026.