Measured and modelled corner diffraction at millimetre wave frequencies
Measured and modelled corner diffraction at millimetre wave frequencies
复制标题
毫米波频率下角衍射的测量和建模
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
M. Beach
中科院分区：
文献类型：
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作者：
Thomas H. Barratt;E. Mellios;P. Cain;A. Nix;M. Beach
由于常用的移动的低于6 GHz频率的频谱拥塞，需要对毫米波（30- 300 GHz）频段进行研究和测量，以更好地了解5G及更高无线连接的介质。在本文中，角衍射的现代建筑物的室内环境中使用的宽带（2GHz）的通道探测器在60 GHz的研究。在距离感兴趣的角的五个不同距离处测量角衍射，在0.5 m、1 m、1.5 m、2 m和10 m的距离处具有平行轨迹。然后将这些测量结果与刀刃衍射（KED）模型进行比较，观察到“良好拟合”。结果表明，对于2米的平行轨道，当用户移动到阴影区域仅0.5米时，功率下降了30 dB。对于10米的平行轨道，在移动1.2米进入阴影区后观察到相同的效果。接收功率的这种快速变化可能对链路自适应和波束跟踪算法的性能以及更高层网络协议的效率产生不利影响。
Due to spectrum congestion in the commonly used mobile sub-6GHz frequencies, research and measurements in the Millimetre Wave (30–300GHz) bands are required to better understand the medium for 5G and beyond wireless connectivity. In this paper corner diffraction is investigated for an indoor environment in a modern building using a wideband (2GHz) channel sounder at 60GHz. Corner diffraction was measured at five different distances from the corner of interest, with parallel tracks at distances of 0.5m, 1m, 1.5m, 2m and 10m. These measurements were then compared with a Knife Edge Diffraction (KED) model where a ‘good-fit’ was observed. Results showed that for 2m parallel tracks the power fell by 30dB as the user moved just 0.5m into the shadow region. For a 10m parallel track, the same effect was observed after moving 1.2m into the shadow region. Such rapid changes in received power can adversely affect the performance of link adaptation and beam tracking algorithms as well as the efficiency of the higher layer network protocols.