  Recently, movable antenna (MA) array becomes a promising technology for
improving the communication quality in wireless communication systems. In this
letter, an unmanned aerial vehicle (UAV) enabled multi-user
multi-input-single-output system enhanced by the MA array is investigated. To
enhance the throughput capacity, we aim to maximize the achievable data rate by
jointly optimizing the transmit beamforming, the UAV trajectory, and the
positions of the MA array antennas. The formulated data rate maximization
problem is a highly coupled non-convex problem, for which an alternating
optimization based algorithm is proposed to get a sub-optimal solution.
Numerical results have demonstrated the performance gain of the proposed method
compared with conventional method with fixed-position antenna array.
