Joint Visibility Region and Channel Estimation for Extremely Large-Scale MIMO Systems
In this work, we investigate the joint visibility region (VR) detection and channel estimation
(CE) problem for extremely large-scale multiple-input-multiple-output (XL-MIMO) systems …
(CE) problem for extremely large-scale multiple-input-multiple-output (XL-MIMO) systems …
Dynamic MIMO architecture design for near-field communications
A novel dynamic hybrid beamforming architecture is proposed to achieve the spatial
multiplexing-power consumption tradeoff for near-field multiple-input multiple-output (MIMO) …
multiplexing-power consumption tradeoff for near-field multiple-input multiple-output (MIMO) …
Sense-Then-Train: An Active-Sensing-Based Beam Training Design for Near-Field MIMO Systems
An active-sensing-based sense-then-train (STT) scheme is proposed for beam training in
near-field multiple-input multiple-output (MIMO) systems. Compared to conventional …
near-field multiple-input multiple-output (MIMO) systems. Compared to conventional …
Including Antenna Effects Into Capacity Formulations of Line-of-Sight MIMO Channels
Analytical expressions for the capacity of multiple-input multiple-output (MIMO) line-of-sight
(LOS) channels that include antenna effects in both the near-and far-field regions are …
(LOS) channels that include antenna effects in both the near-and far-field regions are …
Joint Visibility Region Detection and Channel Estimation for Extra-Large MIMO Systems
In this work, we investigate the joint visibility region (VR) detection and channel estimation
(CE) problem for extremely large-scale multiple-input-multiple-output (XL-MIMO) systems …
(CE) problem for extremely large-scale multiple-input-multiple-output (XL-MIMO) systems …
Spatially Non-Stationary XL-MIMO Channel Estimation: A Three-Layer Generalized Approximate Message Passing Method
In this paper, the channel estimation problem for extremely large-scale multi-input multi-
output (XL-MIMO) systems is investigated with the considerations of near-field (NF) spherical …
output (XL-MIMO) systems is investigated with the considerations of near-field (NF) spherical …
Active-sensing-based beam alignment for near field MIMO communications
An active-sensing-based learning algorithm is proposed to solve the near-field beam
alignment problem with the aid of wavenumber-domain transform matrices (WTMs) …
alignment problem with the aid of wavenumber-domain transform matrices (WTMs) …
Spatial Non-Stationary Dual-Wideband Channel Estimation for XL-MIMO Systems
In this paper, we investigate the channel estimation problem for extremely large-scale multi-
input and multi-output (XL-MIMO) systems, considering the spherical wavefront effect …
input and multi-output (XL-MIMO) systems, considering the spherical wavefront effect …
Near-Field Sensing: A Low-Complexity Wavenumber-Domain Positioning Method
A low-complexity wavenumber-domain positioning method is proposed for near-field
sensing. Specifically, in the wavenumber domain, the power-concentrated region is sparse …
sensing. Specifically, in the wavenumber domain, the power-concentrated region is sparse …
Fractional Fourier Transformation Based XL-MIMO Near-Field Channel Analysis
Due to the impact of spherical wavefront effects, extremely large-scale multiple-input-
multiple-output (XL-MIMO) near-field channels no longer exhibit sparsity in the angular …
multiple-output (XL-MIMO) near-field channels no longer exhibit sparsity in the angular …