具有相位错误和干扰的IRS辅助SWIPT系统的性能分析
Xuhua Tian1, Jing Guo1, Zhili Ren1
1School of Electronic Information and Artificial Intelligence, Shaanxi University of Science and Technology, Xi'an 710021, China.
Sensors (Basel, Switzerland)
|June 27, 2025
概括
本研究分析了具有智能反射表面 (IRS) 的同时无线信息和功率传输 (SWIPT) 系统,考虑相位错误和干扰. 结果显示了这些因素如何影响系统性能,为未来的无线通信设计提供了洞察力.
科学领域:
- 无线通信系统无线通信系统
- 信号处理 信号处理
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 同时无线信息和电力传输 (SWIPT) 系统可以同时传输数据和收集能量.
- 智能反射表面 (IRS) 是通过智能控制传播环境来增强无线通信的有希望的方法.
- 现有的研究往往忽视了IRS相位转移缺陷和SWIPT系统中干扰信号的实际挑战.
研究的目的:
- 在现实的条件下,调查由IRS增强的SWIPT系统的性能,包括相位错误和干扰.
- 分析非线性能量采集和视线传播对系统效率的影响.
- 为了获得关键性能指标的分析表达式,并通过模拟验证它们.
主要方法:
- 与IRS一起开发SWIPT系统的理论框架,包括相位错误和干扰.
- 关闭形式和非对称表达式的导出,用于中断概率,ergodic容量和能源效率 (EE).
- 进行了广泛的模拟,以评估相位误差,干扰,反射元件数量和其他系统参数的影响.
主要成果:
- 衍生的表达式准确地捕捉了系统在各种条件下的性能.
- 阶段错误和干扰信号显著降低了系统性能,特别是在较低的信号噪声比率下.
- 增加IRS反映元素的数量通常会提高系统性能,但回报率会下降.
结论:
- 该研究提供了IRS增强的SWIPT系统的全面性能分析,并考虑了实际的缺陷.
- 这些发现突出了减少相位错误和干扰以实现SWIPT高效运行的关键需求.
- 这项研究为未来的IRS辅助无线通信网络的设计和优化提供了宝贵的见解.
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