MENG HAN, G. X. Y. Z. Broadband cognitive radio transmission based on sub-channel sensing and NC-OFDM. International Journal of Communication Networks and Information Security (IJCNIS), [S. l.], v. 2, n. 2, 2010. DOI: 10.17762/ijcnis.v2i2.40. Disponível em: https://ijcnis.org/index.php/ijcnis/article/view/40. Acesso em: 2 may. 2024.