2D Beamforming for 3D Full-Dimensional Massive MIMO

The paper considers the jointly 2D beamforming design for multi-user (MU) full-dimensional (3D) massive multiple-input multiple output (m-MIMO) systems to maximize the geometric mean of users’ rate (GM-rate), which yields not only users’ fairness in terms of their rate but also rational transmit powers at antennas. We develop a low-complex algorithms, which iterates closed-form expressions for computational solutions of the GM-rate maximization problem. The provided simulations confirm the viability of our development.