Orthogonal time frequency space (OTFS) modulation, collaborated with millimeter-wave
(mmWave) massive multiple-input-multiple-output (MIMO), is a promising technology for next …

Massive multiple-input multiple-output (MIMO) integrated with millimeter-wave (mmWave)
can provide unprecedented performance improvement for realizing future wireless …

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 …

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

Combination of millimeter wave (mmWave) and massive multiple input multiple output
(MIMO) forms a promising technology for future sixth generation networks. As the number of …

Channel estimation is a crucial problem for massive multiple input multiple output (MIMO)
systems to achieve the expected benefits in terms of spectrum and energy efficiencies …

The orthogonal time frequency space (OTFS) is poised to become a pivotal technology for
the next generation of mobile communications, due to its inherent robustness against …

Downlink channel estimation in millimeter-wave (mmWave) frequency division duplex (FDD)
massive multiple input multiple output (MIMO) systems is investigated in this letter …

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 …

Due to the massive deployment of antennas, the computational complexity and channel
dimension increase enormously and the computations are tedious. To solve this problem …