6 papers
Real Interference Alignment for Active IRS-Aided Systems: A Rate-Profile Learning-Based Approach
Junda Liao, Quanzhong Li, Qi Zhang
With additional spatial degrees of freedom provided by the active intelligent reflecting surface (IRS), interference alignment (IA) can be achieved at low cost. In this letter, we…
Fluid Antenna System-Enabled Interference Alignment
Jialu Zheng, Quanzhong Li, Qi Zhang
Interference alignment is an efficient spectrum reuse scheme for multiuser wireless networks. In this letter, assuming no channel state information at the transmitters, we investig…
OFDM Enabled Over-the-Air Computation Systems with Two-Dimensional Fluid Antennas
Heyang Xiong, Quanzhong Li, Qi Zhang
Fluid antenna system (FAS) is able to exploit spatial degrees of freedom (DoFs) in wireless channels. In this letter, to exploit spatial DoFs in frequency-selective environments, w…
Average Secrecy Capacity Maximization of Rotatable Antenna-Assisted Secure Communications
Pengchuan Jiang, Quanzhong Li, Lifeng Mai +1
A rotatable antenna, which is able to dynamically adjust its deflection angle, is promising to achieve better physical layer security performance for wireless communications. In th…
XSema: A Novel Framework for Semantic Extraction of Cross-chain Transactions
Ziye Zheng, Jiajing Wu, Dan Lin +2
As the number of blockchain platforms continues to grow, the independence of these networks poses challenges for transferring assets and information across chains. Cross-chain brid…
Joint Optimization for Achieving Covertness in MIMO Over-the-Air Computation Networks
Junteng Yao, Tuo Wu, Ming Jin +3
This paper investigates covert data transmission within a multiple-input multiple-output (MIMO) over-the-air computation (AirComp) network, where sensors transmit data to the acces…