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首页> 外文会议>IEEE International Conference on Computational Electromagnetics >A Graph-based Simulation Method for Propagation Channels with Multiple-knife-edge Diffraction
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A Graph-based Simulation Method for Propagation Channels with Multiple-knife-edge Diffraction

机译：基于图的多刀沿衍射传播通道仿真方法

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摘要

In this paper, a simulation method reproducing the impact of multiple absorbing knife-edge diffraction on wireless radio propagation channel is proposed based on propagation graph modeling (PGM) that is recently applied to channel simulation with low-complexity by utilizing matrix product to update channel transfer states. In the new PGM proposed here, an iterative mathematic transformation is derived and applied to adapt the distance addition defined in the diffraction to a recursive matrix multiplication. Simulation results are compared among the newly proposed method and other classical numerical analytical approaches, e.g. geometry theory diffraction (GTD) and Deygout methods. It can be observed that the proposed method performs in good consistency to the existing methods when being applied to simulate the path loss behaviors.
机译：本文提出了一种基于传播图模型（PGM）的再现多次吸收刀锋衍射对无线传播信道影响的仿真方法，该方法最近通过利用矩阵乘积更新信道来应用于低复杂度的信道仿真。转移状态。在此处提出的新PGM中，推导了迭代数学变换，并将其应用于使衍射中定义的距离相加适应于递归矩阵乘法。仿真结果在新提出的方法和其他经典数值分析方法之间进行了比较，例如几何理论衍射（GTD）和Deygout方法。可以看出，该方法在用于模拟路径损耗行为时，与现有方法具有很好的一致性。

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