Kondapalli , Pradeep, and A. Kamala Kumari. “Massive MIMO System With Sparse Channel Estimation and Pilot Optimization”. International Journal of Intelligent Systems and Applications in Engineering 12, no. 18s (March 24, 2024): 662–669. Accessed January 9, 2026. https://www.ijisae.org/index.php/IJISAE/article/view/5021.