@ARTICLE{9165770, author={Liu, Qi and Li, Xiaopeng and Cao, Hui}, journal={IEEE Systems Journal}, title={Two-Dimensional Localization: Low-Rank Matrix Completion With Random Sampling in Massive MIMO System}, year={2021}, volume={15}, number={3}, pages={3628-3631}, doi={10.1109/JSYST.2020.3012775}}