A. Salh, L. Audah, N. S. Mohd Shah, and S. A. Hamzah, “Joint Transmit Antennas for Energy Efficiency in Downlink Massive MIMO Systems”, IJIE, vol. 10, no. 3, Jul. 2018, Accessed: Aug. 07, 2026. [Online]. Available: https://journal.uthm.edu.my/index.php/ijie/article/view/2127