测量光束宽度对60 GHz室内和室外通道相关距离的影响
Aidan Hughes1,2, Sung Yun Jun3, Camillo Gentile1
1Wireless Networks Division, National Institute of Standards and Technology, Gaithersburg, USA.
概括
毫米波 (mmWave) 通道测量显示,雷利-赖斯模型对于狭窄的光束宽度是不准确的. 新发现验证了定向散射模型,显示相关距离严重依赖光束宽度.
科学领域:
- 无线通信是一种无线通信.
- 电磁学 电磁学 电磁学 电磁学
- 信号的传播信号的传播
背景情况:
- 毫米波 (mmWave) 接收器面临着频道稀疏性和狭窄的光束宽度,与微波系统相比,改变了小规模的色特性.
- 传统的雷利-赖斯模型,假设万向散射器,不准确地描述毫米波色和相关距离.
- 一个最近的理论模型由Va等人. 提出了一个散射器的定向环,预测光束宽度依赖的相关距离.
研究的目的:
- 实验验证mmWave传播的定向散射器的理论模型.
- 测量在不同环境中连续光束宽度的函数的相关距离.
- 将测量结果与雷利-赖斯模型和定向散射模型的预测进行比较.
主要方法:
- 使用60 GHz的3D双向通道声波器进行了广泛的测量活动.
- 在五个不同的环境 (三个室内,两个室外) 收集了超过36000个频道捕获.
- 利用超分辨率技术测量相关距离与连续光束宽度的相关距离.
主要成果:
- 证明了毫米波频道的相关距离对于狭窄的光束宽度要比雷利-赖斯模型预测的要长得多.
- 在经验上验证了Va等人理论预测. 的定向散射模型.
- 观察到道行为接近雷利-赖斯预测,因为光束宽度增加到全方向性.
结论:
- 雷利-赖斯模型不足以表征毫米波小规模色和相关距离.
- 定向散射模型准确地预测了毫米波频道中相关距离的光束宽度依赖性.
- 测量结果为先进的毫米波频道建模提供了至关重要的实证支持.
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