Pilot and Data Power Allocation for Massive MIMO Systems with an Acceptable Complexity

Abstract

In this paper, a method of power control is proposed in massive multiple-input multiple-output systems on the downlink transmission in order to maximize the spectral efficiency, where a base station with a large number of antennas serves the users equipped with a single antenna. Given the total power budget at the base station, power is allocated to all pilots symbols and various data symbols among the users. Experimental results indicate that the proposed power control method is superior to the most of existing schemes in terms of the spectral efficiency.