8 papers
Robust Beamforming and Power Allocation for Coherent Cell-Free Massive MIMO with Residual Calibration Errors
Mingjun Sun, Xidong Mu, Shaochuan Wu +2
This paper investigates robust downlink transmission to tolerate calibration aging in time-division duplex cell-free massive multiple-input multiple-output (CF-mMIMO) systems with…
Robust Beamforming for Pinching-Antenna Systems
Mingjun Sun, Chongjun Ouyang, Shaochuan Wu +1
Pinching-antenna system (PASS) mitigates large-scale path loss by enabling flexible placement of pinching antennas (PAs) along the dielectric waveguide. However, most existing stud…
Multi-Static Target Position Estimation and System Optimization for Cell-Free mMIMO-OTFS ISAC
Yifei Fan, Shaochuan Wu, Mingjun Sun +3
This paper investigates multi-static position estimation in cell-free massive multiple-input multiple-output (CF mMIMO) architectures, where orthogonal time frequency space (OTFS)…
Physical Layer Security for Pinching-Antenna Systems (PASS)
Mingjun Sun, Chongjun Ouyang, Shaochuan Wu +1
The pinching-antenna system (PASS) introduces new degrees of freedom (DoFs) for physical layer security (PLS) through pinching beamforming. In this paper, a couple of scenarios for…
Multiuser Beamforming for Pinching-Antenna Systems: An Element-wise Optimization Framework
Mingjun Sun, Chongjun Ouyang, Shaochuan Wu +1
The pinching-antenna system (PASS) reconstructs wireless channels through pinching beamforming, i.e., optimizing the activated locations of pinching antennas (PAs) along the wavegu…
A Homogeneous Graph Neural Network for Precoding and Power Allocation in Scalable Wireless Networks
Mingjun Sun, Shaochuan Wu, Haojie Wang +3
Deep learning is widely used in wireless communications but struggles with fixed neural network sizes, which limit their adaptability in environments where the number of users and…