  High data rate communication with Unmanned Aerial Vehicles (UAV) is of
growing demand among industrial and commercial applications since the last
decade. In this paper, we investigate enhancing beam forming performance based
on signal Direction of Arrival (DoA) estimation to support UAV-cellular network
communication. We first study UAV fast moving scenario where we found that
drone's mobility cause degradation of beam forming algorithm performance. Then,
we propose a DoA estimation algorithm and a steering vector adaptive receiving
beam forming method. The DoA estimation algorithm is of high precision with low
computational complexity. Also it enables a beam former to timely adjust
steering vector value in calculating beam forming weight. Simulation results
show higher SINR performance and more stability of proposed method than
traditional method based on Multiple Signal Classification (MUSIC) DoA
estimation algorithm.
