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A Novel 3D Space-Time-Frequency Non-Stationary Channel Model for 6G THz Indoor Communication Systems

机译:适用于6G THz室内通信系统的新型3D时空非平稳信道模型

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Terahertz (THz) communication is now being considered as one of possible technologies for the sixth generation (6G) communication systems. In this paper, a novel three-dimensional (3D) space-time-frequency non-stationary massive multiple-input multiple-output (MIMO) channel model for 6G THz indoor communication systems is proposed. In this geometry-based stochastic model (GBSM), the initialization and evolution of parameters in time, space, and frequency domains are developed to generate the complete channel transfer function (CTF). Based on the proposed model, the correlation functions including time auto-correlation function (ACF), spatial cross-correlation function (CCF), and frequency correlation function (FCF) are investigated. The results show that the statistical properties of the simulation model match well with those of the theoretical model. The stationary intervals at different frequencies are simulated. The non-stationarity in time, space, and frequency domains is verified by theoretical derivations and simulations.
机译:太赫兹(THz)通信现在被认为是第六代(6G)通信系统的可能技术之一。本文提出了一种适用于6G THz室内通信系统的新型三维(3D)时空非平稳大规模多输入多输出(MIMO)信道模型。在这种基于几何的随机模型(GBSM)中,开发了时域,空域和频域中参数的初始化和演化,以生成完整的通道传递函数(CTF)。基于提出的模型,研究了包括时间自相关函数(ACF),空间互相关函数(CCF)和频率相关函数(FCF)在内的相关函数。结果表明,仿真模型的统计性质与理论模型的统计性质非常匹配。模拟了不同频率下的固定间隔。通过理论推导和仿真验证了时域,频域和频域的非平稳性。

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