6 papers
Channel Estimation for XL-MIMO Systems with Decentralized Baseband Processing: Integrating Local Reconstruction with Global Refinement
Anzheng Tang, Jun-Bo Wang, Yijin Pan +6
In this paper, we investigate the channel estimation problem for extremely large-scale multiple-input multiple-output (XL-MIMO) systems with a hybrid analog-digital architecture, i…
Spatial Bandwidth of Bilateral Near-Field Channels for Linear Large-Scale Antenna Array System
Zhen Wang, Yijin Pan, Jun-Bo Wang +2
This paper analyzes the spatial bandwidth of line-of-sight (LoS) channels in massive MIMO systems. For the linear large-scale antenna arrays (LSAA) of transceivers placed in random…
Revealing the evanescent components in Kronecker-product based codebooks: insights and implications
Jun Yang, Yijian Chen, Yunqi Sun +4
The orthogonal bases of discrete Fourier transform (DFT) has been recognized as the standard spatial-domain bases for Type I, Type II and enhanced Type II codewords by the 3rd Gene…
Revisiting XL-MIMO Channel Estimation: When Dual-Wideband Effects Meet Near Field
Anzheng Tang, Jun-Bo Wang, Yijin Pan +4
The deployment of extremely large antenna arrays (ELAAs) in extremely large-scale multiple-input multiple-output (XL-MIMO) systems introduces significant near-field effects, such a…
Patterned Beam Training: A Novel Low-Complexity and Low-Overhead Scheme for ELAA
Hongkang Yu, Yuan Si, Shujuan Zhang +1
Extremely large antenna arrays (ELAAs) can provide higher spectral efficiency. However, the use of narrower beams for data transmission significantly increases the overhead associa…
Fast Beam Training and Performance Analysis for Extremely Large Aperture Array
Yuan Si, Hongkang Yu, Yijian Chen
Extremely large aperture array (ELAA) can significantly enhance beamforming gain and spectral efficiency. Unfortunately, the use of narrower beams for data transmission results in…