12 papers
Electromagnetic Twin: From Sparse Measurements to Persistent Wireless Intelligence
Tuo Wu, Lifeng Mai, Jie Tang +7
Radio maps and channel knowledge maps provide reusable propagation knowledge, but a stored map can become locally outdated after persistent changes to doors, partitions, furniture,…
From Sparse Probes to Sum-Rate Maximization: Electromagnetic Twin Beamforming
Tuo Wu, Kangda Zhi, Jie Tang +3
Probing every candidate location at each wireless-map update is costly. This letter develops electromagnetic-twin (ET) beamforming that converts sparse spatial probes into a sum-ra…
Fundamental Analysis of Scalable Fluid Antenna Systems: Identifiability Limits, Information Theory, and Joint Processing
Tuo Wu, Kai-Kit Wong, Jie Tang +8
Unlike fixed-position arrays with static observation entropy, the scalable fluid antenna system (S-FAS) can dynamically adjust its aperture to form different observation spaces wit…
FAS-RIS for V2X: Unlocking Realistic Performance Analysis with Finite Elements
Tuo Wu, Xiazhi Lai, Maged Elkashlan +3
The synergy of fluid antenna systems (FAS) and reconfigurable intelligent surfaces (RIS) is poised to unlock robust Vehicle-to-Everything (V2X) communications. However, a critical…
Variable Block-Correlation Modeling and Optimization for Secrecy Analysis in Fluid Antenna Systems
Tuo Wu, Kwai-Man Luk, Jie Tang +9
Fluid antenna systems (FAS) are emerging as a transformative enabler for sixth-generation (6G) wireless communications, providing unprecedented spatial diversity through dynamic re…
Rethinking Hardware Impairments in Multi-User Systems: Can FAS Make a Difference?
Junteng Yao, Tuo Wu, Liaoshi Zhou +7
In this paper, we analyze the role of fluid antenna systems (FAS) in multi-user systems with hardware impairments (HIs). Specifically, we investigate a scenario where a base statio…
A Secure Beamforming Design: When Fluid Antenna Meets NOMA
Lifeng Mai, Junteng Yao, Jie Tang +4
This letter proposes a secure beamforming design for downlink non-orthogonal multiple access (NOMA) systems utilizing fluid antenna systems (FAS). We consider a setup where a base…
Unlocking FAS-RIS Security Analysis with Block-Correlation Model
Jianchao Zheng, Xiazhi Lai, Tuo Wu +4
In this letter, we investigate the security of fluid antenna system (FAS)-reconfigurable intelligent surfaces (RIS) communication systems. The base station (BS) employs a single fi…
Exploring the Impact of RIS on Cooperative NOMA URLLC Systems: A Theoretical Perspective
Jianchao Zheng, Tuo Wu, Junteng Yao +3
In this paper, we conduct a theoretical analysis of how to integrate reconfigurable intelligent surfaces (RIS) with cooperative non-orthogonal multiple access (NOMA), considering U…
Intelligent Reflecting Surface-Assisted Symbiotic Radio Systems: A Double-Reflection Covert Communication Design
Yunpeng Feng, Jian Chen, Lu Lv +4
We investigate covert communication in an intelligent reflecting surface (IRS)-assisted symbiotic radio (SR) system under the parasitic SR (PSR) and the commensal SR (CSR) cases, w…
FAS-RIS Communication: Model, Analysis, and Optimization
Junteng Yao, Jianchao Zheng, Tuo Wu +4
This correspondence investigates the novel fluid antenna system (FAS) technology, combining with reconfigurable intelligent surface (RIS) for wireless communications, where a base…
Fluid Antenna-Assisted Simultaneous Wireless Information and Power Transfer Systems
Liaoshi Zhou, Junteng Yao, Tuo Wu +3
This paper examines a fluid antenna (FA)-assisted simultaneous wireless information and power transfer (SWIPT) system. Unlike traditional SWIPT systems with fixed-position antennas…