Nguyen Thi Nga. “Impact of Doppler Effect on Pilot Augmentation Techniques for Channel Estimation in UWA-OFDM Systems”. Journal of Military Science and Technology, no. IITE (October 30, 2025): 99–106. Accessed January 22, 2026. https://en.jmst.info/index.php/jmst/article/view/1866.