8 papers
Fundamental Limits of Localization with Fluid Antenna Systems: A Fisher Information Analysis
Abdelhamid Salem, Kai-Kit Wong, Hyundong Shin +1
In this letter, we investigate the fundamental limits of localization in fluid antenna systems (FAS) utilizing a Fisher-information-theoretic framework. We develop a unified model…
Fluid Antenna System-Enabled UAV-to-Ground Communications
Xusheng Zhu, Kai-Kit Wong, Qingqing Wu +2
Fluid antenna systems (FAS) have emerged as a revolutionary technology offering enhanced spatial diversity within a compact form factor. Concurrently, unmanned aerial vehicles (UAV…
Secure ISAC with Fluid Antenna Systems: Joint Precoding and Port Selection
Abdelhamid Salem, Hao Xu, Kai-Kit Wong +2
This paper presents a novel framework for enhancing physical-layer security in integrated sensing and communication (ISAC) systems by leveraging the reconfigurability of fluid ante…
Geometric Port Selection in CUMA Systems
Chenguang Rao, Kai-Kit Wong, Mohd Hamza Naim Shaikh +3
Compact ultra-massive antenna-array (CUMA) is a novel multiple access technology built on the fluid antenna system (FAS) concept, offering an improved scheme over fluid antenna mul…
Fluid Antenna Systems: A Geometric Approach to Error Probability and Fundamental Limits
Xusheng Zhu, Kai-Kit Wong, Hao Xu +4
The fluid antenna system (FAS) concept is an emerging paradigm that promotes the utilization of the feature of shape and position reconfigurability in antennas to broaden the desig…
Iterative Sparse Asymptotic Minimum Variance Based Channel Estimation in Fluid Antenna System
Zhen Chen, Jianqing Li, Xiu Yin Zhang +3
With fluid antenna system (FAS) gradually establishing itself as a possible enabling technology for next generation wireless communications, channel estimation for FAS has become a…