How to obtain accurate channel state information at the base station (CSIT) is a key
implementation challenge behind frequency-division duplex massive MIMO systems …

The knowledge of CSI at the BS (CSIT) is required to achieve the high spectrum efficiency
promised by massive MIMO. In Frequency-Division Duplex (FDD) Massive MIMO systems …

One major practical issue for the implementation of frequency division duplex (FDD)
massive MIMO systems is that the acquisition of channel state information at the transmitter …

Massive multiple-input multiple-output (MIMO) systems have attracted extensive attention
recently due to their potentials to provide high system capacity. To obtain the benefits of …

Pilot contamination is the reuse of pilot signals, which is a bottleneck in massive multi-input
multi-output (MIMO) systems as it varies directly with the numerous antennas, which are …

We address the downlink channel estimation problem for massive multiple-input multiple-
output (MIMO) systems in this paper, where the inherit burst-sparsity structure is exploited to …

Massive multiple-input multiple-output (MIMO) is a promising approach for cellular
communication due to its energy efficiency and high achievable data rate. These …

Accurate channel estimation with small pilot overhead is vital to improve the capacity and
reliability of massive MIMO systems. Recently, compressed sensing has been applied to …

Acquisition of accurate channel state information (CSI) at the transmitter (CSIT) is a major
challenge of deploying frequency-division duplexing massive MIMO systems. Although …

In this paper, by considering the average mean squared error (AMSE) of channel estimation,
we primarily obtain the closed-from expressions of the probability density function (PDF) and …