4 papers
Effective DoF-Oriented Optimal Antenna Spacing in Near-Field XL-MIMO Systems
Xianzhe Chen, Hong Ren, Cunhua Pan +2
This letter investigates the optimal antenna spacing for a near-field XL-MIMO communication system from the perspective of the array gain. Specifically, using the Green's function-…
Deep Learning-Based CSI Feedback for XL-MIMO Systems in the Near-Field Domain
Zhangjie Peng, Ruijing Liu, Zhaotian Li +2
In this paper, we consider an extremely large-scale massive multiple-input-multiple-output (XL-MIMO) system. As the scale of antenna arrays increases, the range of near-field commu…
Active RIS-Aided Massive MIMO With Imperfect CSI and Phase Noise
Zhangjie Peng, Jianchen Zhu, Cunhua Pan +4
Active reconfigurable intelligent surface (RIS) has attracted significant attention as a recently proposed RIS architecture. Owing to its capability to amplify the incident signals…
Active RIS-Aided Massive MIMO Uplink Systems with Low-Resolution ADCs
Zhangjie Peng, Zecheng Lu, Xue Liu +2
This letter considers an active reconfigurable intelligent surface (RIS)-aided multi-user uplink massive multipleinput multiple-output (MIMO) system with low-resolution analog-to-d…