Spatially-Consistent Human Body Blockage Modeling: A State Generation Procedure
Spatially-Consistent Human Body Blockage Modeling: A State Generation Procedure
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DOI：
10.1109/tmc.2019.2918318
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发表时间：
2020-09
影响因子：
7.9
通讯作者：
Margarita Gapeyenko;Andrey K. Samuylov;M. Gerasimenko;D. Moltchanov;Sarabjot Singh;M. Akdeniz;Ehsan Aryafar;Sergey D. Andreev;N. Himayat;Y. Koucheryavy
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文献类型：
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作者：
Margarita Gapeyenko;Andrey K. Samuylov;M. Gerasimenko;D. Moltchanov;Sarabjot Singh;M. Akdeniz;Ehsan Aryafar;Sergey D. Andreev;N. Himayat;Y. Koucheryavy
3GPP认为空间相关性是毫米波信道建模的关键因素之一。相关的频道行为由宏观对象(如建筑物)和微观对象(包括毫米波接收器周围的人)引起。3GPP为捕捉这些现象而设计的三维(3D)空间一致的信道模型假设接收器之间的相关距离的先验知识。本文提出了一种新的空间一致的人体阻塞状态生成方法，该方法对标准化的3D信道模型进行3GPP扩展，以获取受人体阻塞影响的视线(LOS)链路和反射簇状态之间的相关性。该模型基于条件链路状态概率的解析表达式，从而允许对接收机的空间场进行参数化。它也不需要任何关于相关距离的先验信息，因为后者是基于环境参数明确识别的。我们将所提出的模型的结果与不相关阻塞模型的结果进行了比较，得出结论：在许多特殊情况下，相关表现在附近接收器所经历的不同的传播条件上。
Spatial correlation has been recognized by 3GPP as one of the key elements in millimeter-wave (mmWave) channel modeling. Correlated channel behavior is induced by macro objects, such as buildings, as well as by micro objects, including humans around the mmWave receivers. The 3GPP's three-dimensional (3D) spatially consistent channel model designed to capture these phenomena assumes a-priori knowledge of the correlation distance between the receivers. In this paper, we propose a novel spatially-consistent human body blockage state generation procedure, which extends the standardized 3D channel model by 3GPP to capture the correlation between the line-of-sight (LoS) links and the reflected cluster states affected by human body blockage. The proposed model is based on analytical expressions for the conditional link state probability, thus permitting the parametrization of the spatial field of receivers. It also does not require any a-priori information on the correlation distance as the latter is identified explicitly based on the environmental parameters. We compare the results for the proposed model with those obtained with the uncorrelated blockage model and conclude that in many special cases correlation manifests itself in quantitatively different propagation conditions experienced at the nearby receivers.