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Capacity Stability Analysis for 4-Element Compact MIMO Systems

机译:4元素紧凑型MIMO系统的容量稳定性分析

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In this paper, both 3-dimentional channel matrix eigenvalue probability distribution and a newly proposed generalized condition number (GCN) are used to analyze the capacity stability of 4-element compact MIMO systems when the mean angle of arrival (AoA) of the incident waves varies in the case that mutual coupling among array elements is considered. Theoretical analysis and numerical simulations show that comparing with the traditional 4-element linear array, 4-element square array with spatially symmetric structure is much less sensitive to the angle of incidence, indicating that the square array can maintain a more stable capacity.
机译:本文使用3维信道矩阵特征值概率分布和新提出的广义条件数(GCN)来分析入射波的平均到达角(AoA)时4元素紧凑MIMO系统的容量稳定性在考虑阵列元件之间的相互耦合的情况下可以改变。理论分析和数值模拟表明,与传统的四单元线性阵列相比,具有空间对称结构的四单元正方形阵列对入射角的敏感度低得多,表明该正方形阵列可以保持更稳定的容量。

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