基于UAV的Terahertz无线通信系统的三维非静止MIMO通道建模
Kai Zhang1, Yongjun Li1, Xiang Wang1
1School of Information and Navigation, Air Force Engineering University, Xi'an 710082, China.
Entropy (Basel, Switzerland)
|August 28, 2025
概括
一个新的3D通道模型增强了无人驾驶飞机 (UAV) 的太赫兹 (THz) 无线通信. 该模型通过考虑复杂的无人机运动和大气条件来改善空对空 (A2A) 通信.
科学领域:
- 无线通信
- 电磁学
- 航空航天工程
背景情况:
- 太赫兹 (THz) 频率为无线通信提供了超高数据速率的潜力.
- 无人驾驶飞行器 (UAV) 需要强大而安全的通信链路来实现先进的应用.
- 现有的通道模型可能无法完全捕捉THz频段中无人机对无人机通信的复杂性.
研究的目的:
- 为无人机之间的Terahertz (THz) 多输入多输出 (MIMO) 通信链路提出一个新的三维 (3D) 基于非静态几何的随机通道模型 (GSCM).
- 将现实的环境和操作因素纳入通道模型,包括3D散射,大气吸收,任意无人机轨迹和天线阵列.
- 分析拟议模型的统计特性并验证其准确性.
主要方法:
- 为无人机-MIMO THz 链接量身定制的 3D 非静止 GSCM 的开发.
- 包括反射/散射色,大气分子吸收和动态无人机运动等因素.
- 统计道属性的导出和分析:时间自相关函数 (T-ACF),空间交叉相关函数 (S-CCF) 和多普勒功率频谱密度 (DPSD).
主要成果:
- 拟议的GSCM准确地模拟了无人机的THz-MIMO通道,考虑了复杂的3D场景.
- 关于无人机参数和频段 (mmWave和THz) 的统计属性 (T-ACF,S-CCF,DPSD) 被导出和分析.
- 模拟结果与理论预测一致,验证了模型的正确性.
结论:
- 开发的3D GSCM为基于无人机的空对空 (A2A) THz-MIMO通信系统提供了一个现实的框架.
- 该模型的分析为设计和评估未来无人机通信网络的性能提供了宝贵的见解.
- 这项研究有助于在THz频谱中推进安全,高数据速率的无线连接.
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