| Title |
Beamforming and Trajectory Integrated Optimization Algorithm for UAV-RIS Supported System |
| DOI |
https://doi.org/10.5573/ieie.2024.61.5.12 |
| Keywords |
Minorization-maximization; Reconfigurable intelligent surfaces; Security; Successive convex approximation; Unmanned aerial vehicle |
| Abstract |
Recently, Unmanned Aerial Vehicle (UAV) and Reconfigurable Intelligent Surface (RIS) have received great attention in 5G and 6G wireless communications due to their high flexibility and low hardware costs. However, due to the openness of the wireless communication environment, the problem of vulnerability to eavesdropping still remains. Therefore, in this paper, we introduce a penalty-based Successive Convex Approximation (SCA) algorithm and a Minorization-Maximization (MM) algorithm to optimize the transmission beamforming vector, RIS beamforming vector, and UAV-RIS trajectory in order to increase physical layer security performance in wireless communication systems using UAV and RIS. As a result of the simulation, it can be confirmed that the proposed technique has a higher security transmission rate than the existing technique. |