Jeongho Jeon, Gilwon Lee, Ahmad A. I. Ibrahim, Jin Yuan, Gary Xu, Joonyoung Cho, Eko N. Onggosanusi, Younsun Kim, Juho Lee, Jianzhong Charlie Zhang. MIMO Evolution toward 6G: Modular Massive MIMO in Low-Frequency Bands. IEEE Communications Magazine, 59(11):52-58, 2021. [doi]
Abstract is missing.