Blockage and backscattering by objects are relevant phenomena in millimeter-wave propagation. Conventionally, these phenomena are treated by means of separate models and, in turn, included in the total channel response. In this letter, we propose a combined model for calculating both blocked and backscattered fields from planar smooth electrically-large rectangular surfaces. The contributions of this letter are twofold: first, a single formulation for calculating both blocked and backscattered fields; and second, backscattering models are proposed for calculating blockage as well. Furthermore, the proposed model can be implemented using several models and, finally, is validated with electromagnetic simulations and measurements. Due to its computational efficiency, the model can be suitable for system- and link-level simulations of wireless systems, particularly when Monte Carlo simulations are applied.

中文翻译：

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计算高效的毫米波散射模型：阻塞和后向散射组合模型


物体的阻挡和反向散射是毫米波传播中的相关现象。传统上，这些现象通过单独的模型来处理，并依次包含在总信道响应中。在这封信中，我们提出了一种组合模型，用于计算平面光滑电大矩形表面的阻挡场和反向散射场。这封信的贡献是双重的：首先，用于计算阻挡场和反向散射场的单一公式；其次，还提出了后向散射模型来计算阻塞。此外，所提出的模型可以使用多个模型来实现，并最终通过电磁仿真和测量进行验证。由于其计算效率，该模型适用于无线系统的系统级和链路级仿真，特别是在应用蒙特卡洛仿真时。