DUBEY, Rishika; NIGAM, Vineeta Saxena. High Spectrum Efficiency and Low BER of Massive MIMO System using Spectrum Sensing Cognitive Radio Network. International Journal of Computer Sciences and Engineering, [S. l.], v. 7, n. 7, p. 287–291, 2019. DOI: 10.26438/ijcse/v7i7.287291. Disponível em: https://ijcse.isroset.org/index.php/j/article/view/6995. Acesso em: 1 feb. 2026.