论文标题
用户群集共享的有利传播
Favorable Propagation with User Cluster Sharing
论文作者
论文摘要
我们研究了配备有均匀线性阵列（ULA），水平均匀矩形阵列（HURA）或均匀的圆形阵列（UCA）的大量多用户多用户多输入 - 元素输出（MU-MIMO）系统的有利传播（FP）行为。我们证明了这些系统的FP，并提供了从其大型系统限制的每个上述拓扑的大型限制的FP度量的于点距离（MSD）的分析表达式。我们使用这些结果来检查用户群集共享对FP行为的有害影响，并证明了与UCA和HURA相比具有相同的元素间距的UCA和HURA的出色性能。尽管群集共享对有限阵列的FP有负面影响，但我们还检查了与阵列大小的函数的收敛速率，并表明该速率没有变化，或者没有用户群集共享。
We examine the favorable propagation (FP) behavior of a massive multi-user multiple-input-multiple-output (MU-MIMO) system equipped with a uniform linear array (ULA), horizontal uniform rectangular array (HURA) or uniform circular array (UCA) using a ray-based channel model with user cluster sharing. We demonstrate FP for these systems and provide analytical expressions for the mean-squared distance (MSD) of the FP metric from its large-system limit for each of the aforementioned topologies. We use these results to examine the detrimental effects of user cluster sharing on FP behavior, and demonstrate the superior performance of the ULA as compared to the UCA and the HURA with equal inter-element spacing. Although cluster sharing has a negative impact on FP for finite arrays, we additionally examine the asymptotic rate of convergence to FP as a function of array size and show that this rate is unchanged with or without user cluster sharing.
