Robust Beamforming for UAV Communication With Jittering Effects

We propose a robust beamforming scheme for unmanned aerial vehicle (UAV) communication systems with jittering effects. To overcome the non-convexity of the problem, we propose an Artificial Bee Colony (ABC) algorithm-based beamforming scheme and utilize sample average approximation to optimize the objective function, which is challenging to express in a closed form. Numerical results demonstrate that the proposed scheme significantly enhances outage performance and maintains high spectral efficiency across various antenna configurations and jitter levels. Our method demonstrates superior robustness against angle ambiguity caused by jitter compared to narrow beams and existing wide-beam techniques, resulting in enhanced overall performance.