The analysis of the performance of 5G wireless communication systems employing Massive MIMO at millimeter-wave frequencies is of great practical relevance. Of special relevance are the signal fluctuations. In the present paper, we introduce a semi-analytical model for a generic scattering environment by using randomly distributed resonant scatterers to investigate the impact of the size of the scattering environment, the scatterer density, and the number of scatterers on the signal variability in terms of the Rician K-factor as a function of frequency. We further present an investigation of the impact of scattering on the frequency dependence of the signal fading statistics in the 500 MHz–100 GHz band. The simplified model is also verified against full-wave simulation using the Method of Moments (MoM).

中文翻译：

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Rician K 因子的半解析模型

分析在毫米波频率下采用大规模 MIMO 的 5G 无线通信系统的性能具有重要的实际意义。特别相关的是信号波动。在本文中，我们通过使用随机分布的共振散射体来介绍通用散射环境的半解析模型，以研究散射环境的大小、散射体密度和散射体数量对信号可变性的影响。 Rician K 因子作为频率的函数。我们进一步研究了散射对 500 MHz–100 GHz 频带中信号衰落统计的频率依赖性的影响。还使用矩量法 (MoM) 对简化模型进行了全波仿真验证。