bedham Usha Rani,k.Aruna Kumari. “A Novel Unconstrained Precoding Technique For Channel Estimation Millimeter Wave Communication In 5g”. International Journal of Advanced Science and Technology 29, no. 08 (October 1, 2020): 5413 - 5424. Accessed April 19, 2026. http://sersc.org/journals/index.php/IJAST/article/view/32499.