DR. NGUYEN VAN HIEU; DR. LE THI MAI. Energy Efficiency Optimization in Next-Generation Cellular Networks Using Multi-5G Small Cells with Millimeter-Wave Technology. International Research Journal of Computer and Electronics Engineering, [S. l.], v. 8, n. 2, p. 47–54, 2021. Disponível em: https://urgcee.org/index.php/ircee/article/view/62. Acesso em: 21 oct. 2026.