Zehua Li Tyler Gamvrelis Hussein A. Ammar Raviraj Adve Decentralized User Scheduling and Beamforming in Multi-cell MIMO Networks. 1980-1985 2022 ICC https://doi.org/10.1109/ICC45855.2022.9839273 conf/icc/2022 db/conf/icc/icc2022.html#LiGAA22