Energy-Efficient Multi-Cell Massive MIMO Subject to Minimum User-Rate Constraints

Long D. Nguyen, Hoang D. Tuan, Trung Q. Duong, H. Vincent Poor, Lajos Hanzo

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)
139 Downloads (Pure)


The capability of massive multiple-input multipleoutput (mMIMO) systems supporting the throughput requirement of as many users as possible is investigated. The bottleneck of serving small numbers of users by a large number of transmit antennas in conventional mMIMO is unblocked by a new time-fraction-wise beamforming technique, which focuses signal transmission in fractions of a time slot. Based on this timefraction-wise signal transmission, a new user service scheduling for multi-cell mMIMO, whose cell-edge users suffer not only poor channel conditions but also multi-cell interference, is proposed to support a large user-population. We demonstrate that the numbers of users served by our multi-cell mMIMO within a time-slot may be as high as twice the number of its transmit antennas. 
Original languageEnglish
JournalIEEE Transactions on Communications
Early online date13 Oct 2020
Publication statusEarly online date - 13 Oct 2020


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