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arXiv 2104.11549eess.SPcs.ITmath.IT
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大规模多输入多输出检测中的天线效率

Antenna Efficiency in Massive MIMO Detection

Ruichen Jiang, Ya-Feng Liu

摘要:

在本文中,我们考虑的多用户检测问题的多输入多输出(MIMO)系统中,在基站(BS)的接收天线的数量增长无穷大。我们提出了一个新的性能指标,称为天线效率,来表征如何快速的矢量错误概率(VEP)的接收天线的数量增加,在大系统的限制减少。我们分析了最佳的最大似然(ML)检测器和简单的迫零(ZF)检测器,并证明了他们的天线效率承认一个简单的封闭形式,量化的用户天线比,信噪比(SNR),和星座集上的VEP的影响。数值结果表明,我们的分析可以很好地描述一个现实的大规模多输入多输出系统中的经验检测误差性能。

英文摘要:

In this paper, we consider the multi-user detection problem in a multiple-input multiple-output (MIMO) system, where the number of receive antennas at the base station (BS) grows infinitely large. We propose a new performance metric, called antenna efficiency, to characterize how fast the vector error probability (VEP) decreases as the number of receive antennas increases in the large system limit. We analyze the optimal maximum-likelihood (ML) detector and the simple zero-forcing (ZF) detector and prove that their antenna efficiency admits a simple closed form, which quantifies the impacts of the user-to-antenna ratio, the signal-to-noise ratio (SNR), and the constellation set on the VEP. Numerical results show that our analysis can well describe the empirical detection error performance in a realistic massive MIMO system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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