PHAM, N. S. Improving secrecy cooperation transmissions using power allocation strategy. Journal of Technical Education Science, [S. l.], v. 12, n. Special Issue 01, p. 59–67, 2017. Disponível em: https://www.jte.edu.vn/index.php/jte/article/view/481. Acesso em: 7 apr. 2026.