View article

Transmit power consumption is practically important in future massive connectivity scenarios, especially when in-band inter-cell interference and user-transmit-power budget are considered. In this article, the transmit-power estimation for the uplink of multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) is investigated in which the user precoding and the base station detection are included. For the MIMO-NOMA scheme with group-wise successive interference cancellation (SIC), closed-form expressions for the estimated individual user-transmit-powers are derived for given signal-to-interference-plus-noise ratio (SINR) requirements. Two metrics of average transmit-power are obtained to predict how the user-transmit-powers are distributed within the cell coverage. Numerical experiments show that the analyzed and simulated results are well matched and the gap is smaller than 2 dB for most …