Tipparti, Anil Kumar, and Lokam Anjaneyulu. “Massive MIMO for 5G Network: Fundamentals, Challenges and Key Technologies”. Advanced Aspects of Engineering Research Vol. 14 (May 20, 2021): 104–111. Accessed June 24, 2026. https://stm.bookpi.org/AAER-V14/article/view/1269.