… channel estimation scheme for massive MIMO-OFDM downlink transmission over time-varying
channels… the spatial correlation of the massive MIMO channels. Compared with the SBEM …

… channel sparsity should be known, which in the real channel … the unknown channel sparsity
of the massive MIMO channel, … we use massive MIMO in combination with OFDM systems to …

… channel estimator is insensitive to the channel statistics and can significantly improve the
performance of massive MIMO-OFDM systems. … mean square error of channel estimation (MSE-…

… channel estimators based on a sparse Tucker3 modeling for the massive MIMOOFDM
channel… The tensor-CS approach avoids the computation of channel second-order statistics by …

… (OFDM)-based FDD massive MIMO systems, we propose an effective and practical downlink
channel estimation approach that does not require statistical information of the channels. In …

… MIMO-OFDM system with EM-based channel estimation and a QRD-M data detection algorithm.
In our systems… transmit antenna for the MIMO channel estimation at the receiver. With the …

… multiple-output (MIMO) model, such as channel estimation and precoding, … a channel
estimation scheme for frequency-division duplex (FDD) mmWave massive MIMO-OFDM systems …

… comparison with the conventional MIMO systems. This paper addresses uplink channel
estimation in massive MIMO-OFDM systems with frequency selective channels. We propose an …

… with the massive MIMO-OFDM system pilot subcarriers. Furthermore, we leverage the sparse
nature of the massive MIMO-OFDM system to formulate the quantized AoDs estimation into …

… novel channel prediction framework that integrates the imperfect channel estimation of the
massive MIMO-OFDM … for the imperfect channel estimation in massive MIMO-OFDM systems. …