논문 링크: An Overview of Massive MIMO: Benefits and ChallengesMassive multiple-input multiple-output (MIMO) wireless communications refers to the idea equipping cellular base stations (BSs) with a very large number of antennas, and has been shown to potentially allow for orders of magnitude improvement in spectral anieeexplore.ieee.org 출처: L. Lu, G. Y. Li, A. L. Swindlehurst, A. Ashikhmin and R. Z..