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Throughput Maximization for RIS-UAV Relaying Communications
DOI:10.1109/TITS.2022.3161698.png)
摘要
En 中文
In this paper, we consider a reconfigurable intelligent surface (RIS) assisted unmanned aerial vehicle (UAV) relaying communication system, where the RIS is mounted on the UAV and can move at a high speed. Compared with the conventional static RIS, better performance and more flexibility can be achieved with the assistance of the mobile UAV. We maximize the average downlink throughput by jointly optimizing the UAV trajectory, RIS passive beamforming and source power allocation for each time slot. The formulated non-convex optimization problem is decomposed into three subproblems: passive beamforming optimization, trajectory optimization and power allocation optimization. An alternating iterative optimization algorithm of the three subproblems is proposed to achieve the suboptimal solutions. The numerical results indicate that the RIS-UAV relaying communication system with trajectory optimization can get higher throughput.
Keyword:
Resource management
Autonomous aerial vehicles
Throughput
Array signal processing
Cooperative communication
Trajectory optimization
Relays
UAV
RIS
relaying communications
passive beamforming
throughput
期刊
IF:
8.4
论文数:
9.7K
被引数:
6.3W
机构
引用论文
Joint Beamforming and Trajectory Optimization for Intelligent Reflecting Surfaces-Assisted UAV Communications智能反射面辅助无人机通信的联合波束形成和轨迹优化
IEEE ACCESS
IF3.6
6G: Opening New Horizons for Integration of Comfort, Security, and Intelligence6g: 为舒适、安全和智能的融合开辟新的视野

