Ruijuan Shen Xiaoming Wang 0011 Youyun Xu Weighted Sum-Rate Maximized Power Allocation in Downlink MIMO-NOMA Systems. 679-684 2019 ICCT https://doi.org/10.1109/ICCT46805.2019.8947035 conf/icct/2019 db/conf/icct/icct2019.html#ShenWX19