DOWNLINK POWER CONTROL FOR UNIFORM USER CAPACITY IN SINGLE CELL MASSIVE MIMO SYSTEM

Abstract

This paper proposes a power allocation design for the single-cell massive MIMO downlink, which guarantees uniform capacity among users under a total power constraint, and hence improve the users’ fairness based on the analyzed capacity. The power control factor for each user is derived in closed-form expression, which is inversely proportional to the channel attenuation (path loss). Compared with the existing algorithms, the proposed power control achieves much less complexity. Moreover, some basic relations are also derived for the system design. Numerical results demonstrate the effectiveness of the proposed algorithm.