在无人机辅助的智能反射表面网络中安全和节能传输
Jianbin Xue1, Jialing Xu2, Xiangrui Guan1
1School of Computer and Communication, Lanzhou University of Technology, Lanzhou, 730000, China.
Scientific reports
|October 3, 2025
概括
这项研究通过无人机 (UAV) 和智能反射表面 (IRS) 提高了无线安全性和能源效率. 一种新的深度强化学习方法优化了系统参数,以提高物理层安全性 (PLS) 和持续的能量收集 (EH).
科学领域:
- 无线通信系统无线通信系统
- 信息安全 信息安全
- 人工智能的人工智能
背景情况:
- 在动态,能源有限的环境中,对安全和节能无线通信的需求日益增加.
- 无人机与智能反射面 (IRS) 集成是一个有希望的解决方案.
- 现有的空地通信面临着窃听和有限的无人机能量等挑战.
研究的目的:
- 为无人机-IRS辅助通信提出物理层安全 (PLS) 传输框架.
- 提高保密性能,并通过使用人工噪声 (AN) 和同时无线信息和功率传输 (SWIPT) 确保持续的能源采集 (EH).
- 在能源采集 (EH) 约束下最大限度地提高保密率 (SR).
主要方法:
- 联合优化基站 (BS) 束形,无人机定位和IRS相位转移.
- 开发一种基于深度强化学习 (DRL) 的方法,使用双延迟深度决定性政策梯度 (TD3) 算法来解决非凸式优化问题.
- 人工噪声 (AN) 和同时无线信息和功率传输 (SWIPT) 的集成.
主要成果:
- 拟议的深度强化学习 (DRL) 框架有效优化UAV-IRS通信参数.
- 与基线方案相比,在保密率 (SR) 和能源效率 (EE) 方面均显示出显著的改进.
- 实现了可持续的能源采集 (EH),同时提高了物理层安全性 (PLS).
结论:
- 拟议的无人机-IRS辅助通信框架为安全和节能无线系统提供了强大的解决方案.
- 深度强化学习 (DRL) 是优化复杂无线通信问题的可行方法.
- 集成AN和SWIPT有效地解决了无人机网络中的安全和能源限制.
相关概念视频
Energy Stored In A Coaxial Cable
2.0K
A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly.
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic field inside...
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic field inside...
2.0K
Maximum Power Transfer
819
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
By substituting the entire circuit with...
819
Energy to Drive Translocation
2.7K
Mitochondrial protein import is powered by two distinct energy sources: ATP hydrolysis and electrochemical potential across the inner membrane. Newly synthesized precursors are bound by cytosolic chaperones of the Hsp70 family, which guide them to the import receptors on the mitochondrial surface. Utilizing the energy of ATP hydrolysis, Hsp70 chaperones transfer these precursors to the TOM receptors on the mitochondrial outer membrane.
Generally, polypeptides are unfolded by two distinct...
Generally, polypeptides are unfolded by two distinct...
2.7K
Transmission Line Design Considerations
592
Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
592
Design of Transmission Shafts
738
The design of a transmission shaft is governed by two primary specifications: the power it transmits and its rotational speed. These parameters guide the selection of the shaft's material and cross-sectional dimensions, ensuring that the material's maximum shearing stress remains within the elastic limit while transmitting the desired power at the given speed. The system's power is intrinsically linked to the applied torque. The torque applied to the shaft can be calculated by reconfiguring the...
738
Transmission Shafts: Problem Solving
489
Designing a solid shaft that transmits power from a motor to a machine tool involves a series of calculations to ensure the shaft can withstand the stresses applied by bending moments and torques. First, calculate the torque exerted on the gear, considering the power transmitted by the shaft and its rotational speed. Following this, compute the tangential forces acting on the gears, which directly relate to the torque and the gear radius.
Next, use bending moment diagrams for the shaft to...
Next, use bending moment diagrams for the shaft to...
489


