太赫兹和光学无线通信之间的全面比较.
Mingqing Liu1,2, Hossein Kazemi2, Majid Safari3
1College of Electronics and Information Engineering, Tongji University, Shanghai, China.
概括
本研究量化比较了室内/室外使用的太赫兹 (THz) 通信和光学无线通信 (OWC). 结果揭示了THz和OWC部署的性能权衡和挑战,有助于技术选择.
科学领域:
- 无线通信技术无线通信技术
- 光学和特拉赫兹传感和系统.
背景情况:
- 太赫兹 (THz) 通信和光学无线通信 (OWC) 是高带宽数据传输的前景.
- 这两种技术在室内和室外部署场景中都面临着独特的挑战,包括信号传播,对齐和功耗.
研究的目的:
- 量化比较THz通信和OWC系统的性能和能源效率.
- 分析部署场景 (室内/室外) 和特定挑战 (如错位和功耗) 对系统性能的影响.
主要方法:
- 开发了一种带有天线图案的多射线THz通道模型和基于VCSEL的OWC的高斯波束模型,其中包含了不对齐效应.
- 为THz相位噪声,VCSEL非线性和光探测器权衡创建了功耗模型.
- 在户外场景中对THz和自由空间光学 (FSO) 链接进行了调查,并将其应用于基于UAV的用例.
主要成果:
- 统一的光束宽度假设使基于THz和VCSEL的OWC系统能够进行一致的评估.
- 在室内场景的多发射器覆盖下进行了详细的能源效率分析.
- 在动态户外无人机场景中,评估了THz和FSO链接的通信稳定性.
结论:
- 该研究提供了对THz和OWC技术的性能权衡和部署挑战的关键见解.
- 研究结果有助于理解各技术在各种室内和室外环境中的相对优势.
- 这种定量比较支持未来无线通信系统设计和部署的明智决策.
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