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3D propagation and environment modeling for NLOS wireless small-cell backhaul

机译:NLOS无线小型基站回传的3D传播和环境建模

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This paper presents an overview of challenges and solutions for small-cell wireless backhaul. The different technologies, ranging from 3.5 to 80 GHz, are presented with a focus on radio propagation. Then, the new related design challenges are studied. A first case study shows the benefit of ray-tracing and 3D geographical map data for accurate NLOS link prediction. The use of a vertical-plane model can lead to large errors. Finally, the impact of antenna orientation is analyzed at 3.5 and 28 GHz. An optimum antenna orientation is key for an efficient design, especially at high frequencies. Different configurations for which the direct path is not the strongest are presented. In that case, a ray-tracing model is required.
机译:本文概述了小型蜂窝无线回程的挑战和解决方案。介绍了从3.5到80 GHz的不同技术,重点是无线电传播。然后,研究了新的相关设计挑战。第一个案例研究显示了光线跟踪和3D地理地图数据对于精确NLOS链接预测的好处。垂直平面模型的使用会导致较大的误差。最后,分析了天线定向在3.5 GHz和28 GHz下的影响。最佳的天线方向是高效设计的关键,特别是在高频情况下。提出了直接路径不是最强的不同配置。在这种情况下,需要光线跟踪模型。

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