VUONG, Hoang Nam; NGUYEN, Van Son. Spectral Efficiency Evaluation for Channel Estimation Techniques in Massive MIMO Time Division Duplexing (TDD) System. Old Journal, [S. l.], n. 133, p. 15–20, 2019. Disponível em: https://jst.vn/index.php/old/article/view/662. Acesso em: 2 aug. 2025.