590 citations · 2.4k across the 96 of their papers we have counts for
6 papers · 1 filter
Multiuser Beamforming for Partially-Connected Millimeter Wave Massive MIMO
Chenhao Qi, Jinlin Hu, Yang Du +1
Multiuser beamforming is considered for partially-connected millimeter wave massive MIMO systems. Based on perfect channel state information (CSI), a low-complexity hybrid beamform…
A Framework on Complex Matrix Derivatives with Special Structure Constraints for Wireless Systems
Xin Ju, Shiqi Gong, Nan Zhao +3
Matrix-variate optimization plays a central role in advanced wireless system designs. In this paper, we aim to explore optimal solutions of matrix variables under two special struc…
Task-Oriented Delay-Aware Multi-Tier Computing in Cell-free Massive MIMO Systems
Kunlun Wang, Dusit Niyato, Wen Chen +1
Multi-tier computing can enhance the task computation by multi-tier computing nodes. In this paper, we propose a cell-free massive multiple-input multiple-output (MIMO) aided compu…
Performance Analysis for Near-Field MIMO: Discrete and Continuous Aperture Antennas
Ziyi Xie, Yuanwei Liu, Jiaqi Xu +2
Performance analysis is carried out in a near-field multiple-input multiple-output (MIMO) system for both discrete and continuous aperture antennas. The effective degrees of freedo…
Physical Layer Security for STAR-RIS-NOMA: A Stochastic Geometry Approach
Ziyi Xie, Yuanwei Liu, Wenqiang Yi +2
In this paper, a stochastic geometry based analytical framework is proposed for secure simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assist…
Computation and Privacy Protection for Satellite-Ground Digital Twin Networks
Yongkang Gong, Haipeng Yao Xiaonan Liu, Mehdi Bennis +2
Satellite-ground integrated digital twin networks (SGIDTNs) are regarded as innovative network architectures for reducing network congestion, enabling nearly-instant data mapping f…