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Analysis of multipath propagation for 5G system at higher frequencies in microcellular environment

机译:微蜂窝环境中5G系统在更高频率下的多径传播分析

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The main target of this paper is to perform the multidimensional analysis of multipath propagation at higher frequencies i.e. 15 GHz and 28 GHz, using “sAGA” a 3D ray tracing tool. A real world outdoor Line of Sight (LOS) microcellular environment from the Yokusuka city of Japan is considered for the analysis. The simulation data acquired from the 3D ray tracing tool includes the received signal strength, power angular spectrum and the power delay profile. The different propagation mechanisms were closely analyzed. The simulation results show the difference of propagation at two frequencies i.e. 15 GHz and 28 GHz and draw a special attention on the impact of diffuse scattering at 28 GHz. In a simple outdoor microcellular environment with a valid LOS link between the transmitter and a receiver, a path loss difference of around 5.7 dB was found between 15 GHz and 28 GHz frequency of operation. However, the propagation loss at higher frequency can be compensated by using the antenna with narrow beamwidth and larger gain.
机译:本文的主要目标是使用3D射线追踪工具“ sAGA”对更高频率(即15 GHz和28 GHz)的多径传播进行多维分析。分析了来自日本横须贺市的现实世界户外视线(LOS)微孔环境。从3D射线追踪工具获取的模拟数据包括接收到的信号强度,功率角谱和功率延迟曲线。仔细分析了不同的传播机制。仿真结果表明在两个频率即15 GHz和28 GHz处的传播差异,并特别注意28 GHz处的散射的影响。在一个简单的室外微蜂窝环境中,在发送器和接收器之间具有有效的LOS链路,在15 GHz和28 GHz的工作频率之间发现了大约5.7 dB的路径损耗差异。但是,通过使用窄波束宽度和较大增益的天线,可以补偿较高频率下的传播损耗。

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