In this letter, we reveal that in the massive multiple-input multiple-output system with large
bandwidth, sub-channels of orthogonal frequency division multiplexing share approximately …

In this paper, we investigate a sparse channel estimation problem for broadband massive
multiple-input-multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) …

In this letter, we propose a new channel estimation scheme for downlink channels in
massive multiple-input multiple-output systems, where orthogonal frequency-division …

Massive multiple-input multiple-output (MIMO) enables reliability in low latency
communication systems. This paper proposes a channel estimation scheme in orthogonal …

Massive Multiple Input Multiple Output (MIMO) is a promising technique for communications
due to the high data transmission rate. To harvest the benefit from the massive MIMO, it is …

For downlink orthogonal frequency division multiplexing-based massive multiple-input-
multiple-output transmission over the time-varying channel, channel estimation is very …

Massive multiple-input multiple-output orthogonal frequency division multiplexing (mMIMO-
OFDM) channel estimation is considered recently utilizing compressed sensing (CS) based …

The low-rank property of the channel covariances can be adopted to reduce the overhead of
the channel training in massive MIMO systems. In this paper, with the help of the virtual …

This paper addresses wideband channel estimation in an uplink massive multiple-input
multiple-output (MIMO) system, which consists of multiple single-antenna users and a base …

This paper addresses the problem of uplink (UL) and downlink (DL) channel estimation in
frequency-division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems …