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Unmanned Aerial Vehicle (UAV) air-to-ground communication plays a significant role in the integrated information network. Reconfigurable Intelligent Surface (RIS), a passive antenna array, is particularly well-suited for UAV applications. However, airflow induced UAV wobbling can significantly damage the performance of the RIS enabled beamforming. In this paper, we investigate a robust beamforming method that employs a Rotator-Aided RIS (R-RIS), introducing a novel approach to mitigating disturbances. The design problem is non-convex, prompting the proposal of a heuristic strategy that effectively decouples the original problem. The simulation results validate the effectiveness of the proposed scheme, highlighting its ability to enhance the beam stabilization.

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Rotator-Aided RIS Beam Stabilization Method in UAV Communications

  • 会议论文

  • 发表日期：

    2025年

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  • Jingwei Hu,
  • Mingcheng Shen,
  • Chunxia Su,
  • Yao Xu,
  • Jichong Guo

摘要

Unmanned Aerial Vehicle (UAV) air-to-ground communication plays a significant role in the integrated information network. Reconfigurable Intelligent Surface (RIS), a passive antenna array, is particularly well-suited for UAV applications. However, airflow induced UAV wobbling can significantly damage the performance of the RIS enabled beamforming. In this paper, we investigate a robust beamforming method that employs a Rotator-Aided RIS (R-RIS), introducing a novel approach to mitigating disturbances. The design problem is non-convex, prompting the proposal of a heuristic strategy that effectively decouples the original problem. The simulation results validate the effectiveness of the proposed scheme, highlighting its ability to enhance the beam stabilization.