Orthogonal time frequency space (OTFS) modulation outperforms orthogonal frequency
division multiplexing (OFDM) in high-mobility scenarios. One challenge for OTFS massive …

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

Massive MIMO is a promising technique for future 5G communications due to its high
spectrum and energy efficiency. To realize its potential performance gain, accurate channel …

We propose adjustable phase shift pilots (APSPs) for channel acquisition in wideband
massive multiple-input multiple-output (MIMO) systems employing orthogonal frequency …

Although it is often used in the orthogonal frequency division multiplexing (OFDM) systems,
application of massive multiple-input multiple-output (MIMO) over the orthogonal time …

Although the combination of the orthogonal time frequency space (OTFS) modulation and
the massive multiple-input multiple-output (MIMO) technology can make communication …

This letter proposes a multi-user uplink channel estimation scheme for mmWave massive
MIMO over frequency selective fading (FSF) channels. Specifically, by exploiting the angle …

Multiple-input multiple-output (MIMO) millimeter wave (mmWave) communication is a key
technology for next generation wireless networks. One of the consequences of utilizing a …

In this paper, we develop two high-resolution channel estimation schemes based on the
estimating signal parameters via the rotational invariance techniques (ESPRIT) method for …

This paper proposes a spatially common sparsity based adaptive channel estimation and
feedback scheme for frequency division duplex based massive multi-input multi-output …