Asymptotic orthogonality of channel vectors, also called favorable propagation (FP), plays a
key role in massive multiple-input multiple-output (MIMO) systems, allowing linear …

Massive MIMO (multiple-input-multiple-output) is one of the key technologies of 5G mobile
cellular networks, which can form a huge antenna array by providing a large number of …

The theoretical analysis of downlink massive MIMO usually assumes the ideal Gaussian
channel matrix with asymptotic orthogonality of channel vectors. Meanwhile, recent …

Antenna selection is a low cost solution to massive MIMO systems. There are two well-
known design criteria of antenna selection in MIMO systems, ie, maximizing MIMO capacity …

Massive multiple-input multiple-output (MIMO) technology offers significant improvements in
both spectral and energy efficiency by utilizing the same time and frequency resource as …

针对高速移动环境信道特征复杂多变, 同时存在加性噪声和非线性效应的影响,
提出一种残差混合网络(RM-Net) 的大规模MIMO CSI 反馈算法. RM-Net 通过学习高速移动信道 …

针对大规模多输入多输出(MIMO) 系统信道估计算法复杂度高的缺陷, 结合无线通信信道固有的
稀疏性提出了一种低复杂度的稀疏信道估计算法. 该算法是在传统的离散傅里叶变换(DFT) …

In frequency division duplex (FDD) massive MIMO systems, the feedback of channel state
information (CSI) increases greatly with the number of antennas raising. Therefore, it is a hot …

In this work, we propose a beam selection scheme that exploits the geometric sparsity of the
multi-user (MU) massive multiple input and multiple output (MIMO) channel, using its …

Pilot contamination is a major limitation in estimating the uplink channel state in massive
MIMO systems using time division duplex communication method. This limitation has a huge …