可持续THz SWIPT通过RIS启用传感和自适应功率聚焦:朝着绿色6G物联网发展
Sunday Enahoro1, Sunday Cookey Ekpo1, Mfonobong Uko1
1Communication and Space Systems Engineering Research Team, Manchester Metropolitan University, Manchester M1 5GD, UK.
Sensors (Basel, Switzerland)
|August 14, 2025
概括
本研究介绍了一种传感适应功率聚焦 (APF) 框架,用于特拉赫兹 (THz) 通信和同时无线信息和功率传输 (SWIPT). APF提高了物联网设备的数据速率和收集的能量,同时确保安全合规性.
科学领域:
- 无线通信无线通信
- 收集能源 收集能源
- 物联网 (IoT) 的物联网 (IoT) 的物联网.
背景情况:
- 太赫兹 (THz) 通信和同时无线信息和功率传输 (SWIPT) 承诺为没有电池的物联网设备提供高速数据和电力.
- 挑战包括严重的路径损失,阻塞,非线性和安全问题 (特定吸收率 - SAR).
研究的目的:
- 提出一种传感适应功率聚焦 (APF) 框架,使用具有嵌入式传感器的可重新配置智能表面 (RIS).
- 为了共同优化RIS相位配置,多色调SWIPT波形和非线性功率分割比,以提高性能和安全性.
主要方法:
- 一个传感适应功率聚焦 (APF) 框架与RIS嵌入低速THz传感器.
- 实时反向散射测量,以创建一个空间地图,用于关节优化.
- 权重的MMSE内循环用于数据速率最大化和交替优化,并对约束和SAR合规性进行半确定的放松.
主要成果:
- 在自适应基线上,APF比帕雷托边界提高了30-75%的速率-能量.
- 在收获的能量中获得了150%的收益和440 Mbps的峰值每用户速率.
- 将能源效率的变量减少一半,保持高公平性 (简指数0.999),并将SAR限制在安全门以下.
结论:
- 该APF框架为未来的6G应用提供了高效,安全和可持续的THz驱动网络.
- 快速融合 (<3毫秒) 确保网络物理系统实时合规.
- 支持各种应用程序,如智能工厂,数字双胞胎和扩展现实 (XR).
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