APENA, W. O. Performance Evaluation of PAM-4 and PAM-2 Modulation Techniques using MATLAB. European Journal of Engineering and Technology Research, [S. l.], v. 3, n. 5, p. 36–40, 2018. DOI: 10.24018/ejeng.2018.3.5.679. Disponível em: https://ej-eng.org/index.php/ejeng/article/view/679. Acesso em: 6 jul. 2024.