Cluster Properties Investigated From a Series of Ultrawideband Double Directional Propagation Measurements in Home Environments
Cluster Properties Investigated From a Series of Ultrawideband Double Directional Propagation Measurements in Home Environments
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DOI：
10.1109/tap.2006.886526
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发表时间：
2006-12
影响因子：
5.7
通讯作者：
K. Haneda;J. Takada;T. Kobayashi
中科院分区：
文献类型：
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作者：
K. Haneda;J. Takada;T. Kobayashi
介绍了在木屋中进行双向超宽带信道测深的结果。双向信道测深仪估计链路两端的方向信息，从而将天线指向性从信道测深结果中分离出来。我们通过引入聚类分析来研究显性传播机制。首先在角延迟域对探测到的信道传播路径进行聚类，然后推导出聚类的路径位置标准差、路径功率动态范围和簇功率分布等特性。从结果出发，讨论了测量环境与物理传播现象的异同。最后，对不同类型的散射损耗进行了推导和建模。探测和分析的结果有助于建立超宽带传播模型，并可用于超宽带传播仿真
Results from double directional ultrawideband (UWB) channel sounding in a wooden house are described. The double directional channel sounder estimates directional information at both ends of the link, so that we can separate antenna directivity from the channel sounding results. We investigated the dominant propagation mechanisms by introducing cluster analyses. The detected propagation paths from the channel sounding were first classified into clusters in the angular-delay domain, and then properties of the clusters such as standard deviation of path positions, dynamic range of path power, and power distribution of clusters were derived. From the results, we discussed the similarities and differences between the measurement environment and the physical propagation phenomena. Finally, different types of scattering losses of the propagation paths were derived and modeled. The results from sounding and analysis contribute in the development of UWB propagation models and can be used in UWB propagation simulations