OTFS vs. OFDM in the presence of sparsity: A fair comparison
Many recent works in the literature declare that Orthogonal Time-Frequency-Space (OTFS)
modulation is a promising candidate technology for high mobility communication scenarios …
modulation is a promising candidate technology for high mobility communication scenarios …
Reconfigurable intelligent surface aided high-mobility millimeter wave communications with dynamic dual-structured sparsity
Although reconfigurable intelligent surface (RIS) has been touted as a technology star for
future wireless networks, the critical bottleneck still lies in the accurate acquisition of channel …
future wireless networks, the critical bottleneck still lies in the accurate acquisition of channel …
RISnet: A domain-knowledge driven neural network architecture for RIS optimization with mutual coupling and partial CSI
Space-division multiple access (SDMA) plays an important role in modern wireless
communications. Its performance depends on the channel properties, which can be …
communications. Its performance depends on the channel properties, which can be …
Robust massive MIMO channel estimation for 5G networks using compressive sensing technique
The pilot overhead provides fundamental limits on the performance of massive multiple-
input multiple-output (MIMO) systems. This is because the performance of such systems is …
input multiple-output (MIMO) systems. This is because the performance of such systems is …
Angular-domain selective channel tracking and Doppler compensation for high-mobility mmWave massive MIMO
In this paper, we consider a mmWave massive multiple-input multiple-output (MIMO)
communication system with one static base station (BS) serving a fast-moving user, both …
communication system with one static base station (BS) serving a fast-moving user, both …
Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots
In this paper, we propose a channel acquisition approach with time-frequency phase-shifted
pilots (TFPSPs) for massive multi-input multi-output orthogonal frequency division …
pilots (TFPSPs) for massive multi-input multi-output orthogonal frequency division …
Channel acquisition for HF skywave massive MIMO-OFDM communications
In this paper, we investigate channel acquisition for high frequency (HF) skywave massive
multiple-input multiple-output (MIMO) communications with orthogonal frequency division …
multiple-input multiple-output (MIMO) communications with orthogonal frequency division …
Exploiting the massive MIMO channel structural properties for minimization of channel estimation error and training overhead
Exploiting massive multiple-input-multiple-output (MIMO) gains come at the expense of
obtaining accurate channel estimates at the base station. However, conventional channel …
obtaining accurate channel estimates at the base station. However, conventional channel …
Joint Multipath Channel Estimation and Array Channel Inconsistency Calibration for Massive MIMO Systems
Efficient communication in massive multiple-input multiple-output (MIMO) systems relies on
accurate channel estimation to optimize signal transmission efficiency, reliability, and …
accurate channel estimation to optimize signal transmission efficiency, reliability, and …
Optimized switching between sensing and communication for mmWave MU-MISO systems
In this paper, we propose a scheme optimizing the per-user channel sensing duration in
millimeter-wave (mmWave) multi-user multiple-input single-output (MU-MISO) systems. For …
millimeter-wave (mmWave) multi-user multiple-input single-output (MU-MISO) systems. For …