Channel Estimation in BPSK-QPSK-PSK 16 & 64 QAM MIMO-OFDM System. Int. J. Curr. Eng. Technol. 2014;4(4):2346-2348. Accessed April 12, 2026. https://ijcet.evegenis.org/index.php/ijcet/article/view/1038