6 papers
No Eigenvalues Outside the Limiting Support of Generally Correlated and Noncentral Sample Covariance Matrices
Zeyan Zhuang, Xin Zhang, Dongfang Xu +1
Spectral properties of random matrices play an important role in statistics, machine learning, communications, and many other areas. Engaging results regarding the convergence of t…
Fluid Antenna Meets RIS: Random Matrix Analysis and Two-Timescale Design for Multi-User Communications
Xin Zhang, Dongfang Xu, Jingjing Wang +3
The reconfigurability of fluid antenna systems (FASs) and reconfigurable intelligent surfaces (RISs) provides significant flexibility in optimizing channel conditions by jointly ad…
Decentralized MIMO Systems with Imperfect CSI using LMMSE Receivers
Zeyan Zhuang, Xin Zhang, Dongfang Xu +2
Centralized baseband processing (CBP) is required to achieve the full potential of massive multiple-input multiple-output (MIMO) systems. However, due to the large number of antenn…
Fundamental Limits of Optical Fiber MIMO Channels With Finite Blocklength
Xin Zhang, Dongfang Xu, Shenghui Song +1
The multiple-input and multiple-output (MIMO) technique is regarded as a promising approach to boost the throughput and reliability of optical fiber communications. However, the fu…
Interference Mitigation for Network-Level ISAC: An Optimization Perspective
Dongfang Xu, Yiming Xu, Xin Zhang +3
Future wireless networks are envisioned to simultaneously provide high data-rate communication and ubiquitous environment-aware services for numerous users. One promising approach…
Fundamental Limits of Two-Hop MIMO Channels: An Asymptotic Approach
Zeyan Zhuang, Xin Zhang, Dongfang Xu +1
Multi-antenna relays and intelligent reflecting surfaces (IRSs) have been utilized to construct favorable channels to improve the performance of wireless systems. A common feature…