Ang Li 0003 Christos Masouros Branka Vucetic Yonghui Li 0001 A. Lee Swindlehurst Interference Exploitation Precoding for Multi-Level Modulations: Closed-Form Solutions. 291-308 2021 69 IEEE Trans. Commun. 1 https://doi.org/10.1109/TCOMM.2020.3031616 https://www.wikidata.org/entity/Q118186667 db/journals/tcom/tcom69.html#LiMVLS21