17 citations · 63 across the 53 of their papers we have counts for
55 papers
Covert Communications over Enormous Fluid Antenna Systems (E-FAS): Impact of Channel Hardening on Detection
Farshad Rostami Ghadi, Damoon Shahbaztabar, Kai-Kit Wong +1
Enormous fluid antenna systems (E-FAS) enable guided surface wave (SW) propagation and induce an end-to-end channel that is conditionally complex Gaussian with a random covariance…
Performance Limits of FRIS Systems in Nakagami- Fading
Masoud Khazaee, Felipe A. P. de Figueiredo, Rausley A. A. de Souza +4
Fluid reconfigurable intelligent surfaces (FRIS) have recently emerged as a promising technology for enhancing wireless link reliability through spatial decorrelation. However, the…
Enhanced Fluid Index Modulation for Integrated Data and Energy Transfer
Long Zhang, Yizhe Zhao, Halvin Yang +2
Integrated data and energy transfer (IDET) is a promising technique for supporting sustainable low-power wireless networks. To improve both communication reliability and energy tra…
Geometry-Structured Channel Reconstruction for Conventional and Fluid Antenna Systems: Bayesian Inference and Fundamental Limits
Zhentian Zhang, Kai-Kit Wong, Kaitao Meng +5
Accurate channel state information (CSI) acquisition is critical for exploiting the spatial flexibility of fluid antenna systems (FASs). However, port selection and transmission op…
Diffusion Fluid Antenna Systems for Resilient ISAC
Noor Waqar, Kai-Kit Wong, Chan-Byoung Chae +1
Most existing integrated sensing and communication (ISAC) studies focus on enabling a base station (BS) to support sensing and communication over shared resources through advanced…
Fast Fluid Antenna Multiple Access
Noor Waqar, Kai-Kit Wong, Chan-Byoung Chae +1
Fast fluid antenna multiple access (FAMA) is an idea that promises to overcome severe interference in massive access scenarios by reconfiguring the antenna's position at the receiv…
Stochastic Geometry Analysis of Uplink CUMA-Enabled Cellular Networks
Chenguang Rao, Kai-Kit Wong, Xusheng Zhu +3
Uplink cellular networks are interference-dominated but interference channel state information (CSI) is rarely available at scale. The emerging fluid antenna system (FAS) concept,…
Copula-Induced Correntropy for Robust Conjugate Gradient Learning
Farshad Rostami Ghadi, F. Javier Lopez-Martinez, David Morales-Jimenez +2
Robust learning in the presence of non-Gaussian and statistically dependent noise remains a fundamental challenge in signal processing and adaptive systems. Although information-th…
Fluid RIS (FRIS)-Assisted Index Modulation for 6G Wireless Communications
Xusheng Zhu, Kai-Kit Wong, Sai Xu +3
Fluid reconfigurable intelligent surfaces (FRIS) extend conventional reconfigurable intelligent surfaces (RIS) by adding spatial reconfigurability through switchable apertures, pat…
Finite-Aperture Planar Fluid Antenna Array
Zhentian Zhang, Jingyuan Xu, Kai-Kit Wong +3
Fluid antenna systems (FASs) are emerging as a reconfigurable-aperture technology that expands physical-layer design beyond fixed, rigid antenna geometries. While the \emph{fading…
How Many Independent Modes Does a Fluid Antenna Have? A Closed-Form Outage Analysis via Equivalent Degrees of Freedom
Tuo Wu, Junteng Yao, Kai-Kit Wong +5
In a fluid antenna system (FAS), a single reconfigurable antenna is able to activate one of correlated ports to exploit spatial diversity. However, outage analysis is challengi…
MAGRPO: Accelerated MARL Training for Fluid Antenna-Assisted Wireless Network Optimization
Wanzhe Wang, Tong Zhang, Yanfei Su +4
Fluid antenna systems (FASs) improve wireless links by repositioning antenna elements to exploit favorable spatial channel variations. Jointly optimizing fluid antenna (FA) positio…
WirelessAgent: A Unified Agent Design for General Wireless Resource Allocation Problem without Current Channel State Information
Ran Yi, Ruopeng Xu, Dongshu Zhao +5
This paper investigates the agent design for solving the wireless resource allocation problem without sufficient channel state information (CSI), which cannot be effectively solved…
Jointly Correlated Dual-Side Fluid Antenna System
Zhentian Zhang, Yuanhui Wu, Kai-Kit Wong +2
Fluid antenna systems (FASs) have introduced a new paradigm for wireless system design by revealing how mutual correlation can be exploited to harvest inherent spatial diversity. W…
Beyond Covariance: Generative Spatial Correlation Modeling and Channel Interpolation for Fluid Antenna Systems
Zhentian Zhang, Hao Jiang, Kai-Kit Wong +2
Fluid antenna systems (FAS) enable unprecedented spatial diversity within a compact form factor by flexibly switching among high-density antenna ports. To activate this capability,…
Toward a Receiver-Induced Channel Shaping Paradigm: FRIS-Assisted Rydberg Atomic MIMO with Quadrature-Leakage-Aware Design
Hong-Bae Jeon, Kai-Kit Wong, Chan-Byoung Chae
This paper investigates a fluid reconfigurable intelligent surface (FRIS)-assisted Rydberg Atomic REceiver (RARE) architecture under magnitude-only heterodyne readout. We show that…
Antenna Elements' Trajectory Optimization for Throughput Maximization in Continuous-Trajectory Fluid Antenna-Aided Wireless Communications
Shuaixin Yang, Yijia Li, Yue Xiao +4
Fluid antenna (FA) systems offer novel spatial degrees of freedom (DoFs) with the potential for significant performance gains. Compared to existing works focusing solely on optimiz…
Reinforcing Structured Chain-of-Thought for Video Understanding
Peiyao Wang, Haotian Xu, Noranart Vesdapunt +6
Multi-modal Large Language Models (MLLMs) show promise in video understanding. However, their reasoning often suffers from thinking drift and weak temporal comprehension, even when…
Fluid Reconfigurable Intelligent Surface Enabling Index Modulation
Peng Zhang, Jian Dang, Miaowen Wen +5
Fluid reconfigurable intelligent surfaces (FRIS) enable joint position and phase reconfigurability by integrating fluid antennas (FA) with conventional reconfigurable intelligent s…
Information-Theoretic Limits of Fluid Antenna-Aided ISAC with Representation Information Constraints
Farshad Rostami Ghadi, Kai-Kit Wong, F. Javier Lopez-Martinez +3
This paper characterizes the fundamental limits of integrated sensing and communication (ISAC) when the transmitter is subject to a representation-constrained encoder modeled via a…
Cramer-Rao Bounds for Activity Detection in Conventional and Fluid Antenna Systems
Zhentian Zhang, Kai-Kit Wong, Hao Jiang +2
In this letter, we develop a unified Cramér-Rao bound (CRB) framework to characterize the fundamental performance limits of transmission activity detection in fluid antenna systems…
Finite-Aperture Fluid Antenna Array Design: Analysis and Algorithm
Zhentian Zhang, Kai-Kit Wong, Hao Jiang +3
Finite-aperture constraints render array design nontrivial and can undermine the effectiveness of classical sparse geometries. This letter provides universal guidance for fluid ant…
Information-Theoretic Limits of Integrated Sensing and Communication with Finite Learning Capacity
Farshad Rostami Ghadi, F. Javier Lopez-Martinez, Kai-Kit Wong +1
This paper develops a unified information-theoretic framework for artificial-intelligence (AI)-aided integrated sensing and communication (ISAC), where a learning component with li…
Performance Analysis of Fluid Reconfigurable Intelligent Surface over Covert Communications
Farshad Rostami Ghadi, Masoud Kaveh, Hanjiang Hong +3
This paper investigates the impact of the recently proposed concept of fluid reconfigurable intelligent surfaces (FRIS) on covert communications. Specifically, we consider a commun…