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Related papers: Jointly Correlated Dual-Side Fluid Antenna System

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Fluid Antenna Systems (FASs) have recently been proposed for enhancing the performance of wireless communication. Previous antenna designs to meet the requirements of FAS have been based on mechanically movable or liquid antennas and…

Signal Processing · Electrical Eng. & Systems 2024-06-17 Jichen Zhang , Junhui Rao , Zhaoyang Ming , Zan Li , Chi-Yuk Chiu , Kai-Kit Wong , Kin-Fai Tong , Ross Murch

Electromagnetically reconfigurable fluid antenna systems (ER-FAS) introduce additional degrees of freedom in the electromagnetic (EM) domain by dynamically steering per-antenna radiation patterns, thereby enhancing power efficiency in…

Signal Processing · Electrical Eng. & Systems 2025-09-01 Alireza Fadakar , Yuchen Zhang , Hui Chen , Musa Furkan Keskin , Henk Wymeersch , Andreas F. Molisch

This paper investigates the unsourced random access (URA) problem for integrated sensing and commutations (ISAC). Recent results reveal that conventional multiple access strategies for ISAC such as treating interference as noise (TIN) and…

Information Theory · Computer Science 2025-09-22 Zhentian Zhang , Kai-Kit Wong , Jian Dang , Zaichen Zhang , Chan-Byoung Chae

Owing to its flexible and intelligent electromagnetic signal manipulation, the technology of reconfigurable intelligent surfaces (RISs) has attracted widespread attention. However, the potential of current RISs can only be partly unlocked…

Information Theory · Computer Science 2025-09-24 Han Xiao , Xiaoyan Hu , Kai-Kit Wong , Xusheng Zhu , Hanjiang Hong , Farshad Rostami Ghadi , Hao Xu , Chan-Byoung Chae

Fluid antenna enables position reconfigurability that gives transceiver access to a high-resolution spatial signal and the ability to avoid interference through the ups and downs of fading channels. Previous studies investigated this fluid…

Signal Processing · Electrical Eng. & Systems 2025-04-30 Tianyu Han , Yongxu Zhu , Kai-Kit Wong , Gan Zheng , Hyundong Shin

Over-the-air computation (AirComp) has emerged as a promising technology for fast wireless data aggregation by harnessing the superposition property of wireless multiple-access channels. This paper investigates a fluid antenna (FA)…

Information Theory · Computer Science 2025-02-14 Deyou Zhang , Sicong Ye , Ming Xiao , Kezhi Wang , Marco Di Renzo , Mikael Skoglund

Reconfigurable intelligent surfaces (RISs) and fluid antennas (FAs) are key technologies for enhancing spatial degrees of freedom in future wireless networks. However, channel acquisition in RIS-aided FA systems is challenging as cascaded…

Signal Processing · Electrical Eng. & Systems 2026-04-21 Josué V. de Araújo , Gilderlan T. de Araújo , André L. F. de Almeida

When the concept of fluid antenna system (FAS) is applied to multiple-input multiple-output (MIMO) systems, this gives rise to MIMO-FAS, a.k.a.~fluid MIMO. Under rich scattering, the spatial correlation matrices are governed by the…

Signal Processing · Electrical Eng. & Systems 2026-03-10 Tuo Wu , Kai-Kit Wong , Baiyang Liu , Kin-Fai Tong , Hyundong Shin

This paper presents an analytical framework for evaluating the coverage performance of the fluid antenna system (FAS)-enhanced LoRa wide-area networks (LoRaWANs). We investigate the effects of large-scale pathloss in LoRaWAN, small-scale…

Signal Processing · Electrical Eng. & Systems 2026-04-21 Gaoze Mu , Yanzhao Hou , Mingjie Chen , Yuanyu Hu , Yongan Zheng , Qimei Cui , Xiaofeng Tao

In this paper, we investigate the performance of a fluid antenna relay (FAR)-assisted downlink communication system utilizing non-orthogonal multiple access (NOMA). The FAR, which integrates a fluid antenna system (FAS), is equipped on an…

Signal Processing · Electrical Eng. & Systems 2026-03-27 Ruopeng Xu , Songling Zhang , Zhaohui Yang , Yixuan Chen , Mingzhe Chen , Zhaoyang Zhang , Kai-Kit Wong

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 to quantify the localization information extractable from…

Signal Processing · Electrical Eng. & Systems 2025-12-17 Abdelhamid Salem , Kai-Kit Wong , Hyundong Shin , Yangyang Zhang

This letter studies an uplink over-the-air computation (AirComp) framework in which multiple user equipments are equipped with fluid-antenna (FA) arrays and operate over spatially correlated fading channels. By explicitly modeling channel…

Signal Processing · Electrical Eng. & Systems 2026-05-06 Saeid Pakravan , Mohsen Ahmadzadeh , Wessam Ajib , Ghosheh Abed Hodtani , Ming Zeng

From an information theoretic perspective, joint communication and sensing (JCAS) represents a natural generalization of communication network functionality. However, it requires the re-evaluation of network performance from a…

Information Theory · Computer Science 2024-01-17 Nicholas R. Olson , Jeffrey G. Andrews , Robert W. Heath

A novel scalable pixel-based reconfigurable beamforming network (PRBFN) that can be used to form a Fluid Antenna System (FAS), referred to as a PRBFN-FAS, is introduced. The concept of FAS has emerged as an attractive new technology for use…

Signal Processing · Electrical Eng. & Systems 2025-12-04 Jichen Zhang , Junhui Rao , Tianqu Kang , Zhaoyang Ming , Yijun Chen , Alikhan Umirbayev , Chi-Yuk Chiu , Ross Murch

Non-fixed flexible antenna architectures, such as fluid antenna system (FAS), movable antenna (MA), and pinching antenna, have garnered significant interest in recent years. In this paper, we propose a new rotatable antenna (RA) model to…

Information Theory · Computer Science 2026-03-31 Beixiong Zheng , Qingjie Wu , Tiantian Ma , Rui Zhang

This paper studies a fluid-antenna-enabled integrated bistatic sensing and backscatter communication system for future networks where connectivity, power delivery, and environmental awareness are jointly supported by the same…

Signal Processing · Electrical Eng. & Systems 2026-02-12 A. Abdelaziz Salem , Saeed Abdallah , Khawla Alnajjar , Mahmoud A. Albreem , Mohamed Saad , Hayssam Dahrouj , Hesham Elsawy

The fluid antenna system (FAS) is a disruptive tech-nology for future wireless communication networks. This paper considers the joint optimization of beamforming matrices and antenna positions for weighted sum rate (WSR) maximization in…

Information Theory · Computer Science 2025-09-26 Tianyi Liao , Wei Guo , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

The concept of reconfigurable fluid antennas (FA) is a potential and promising solution to enhance the spectral efficiency of wireless communication networks. Despite their many advantages, FA-enabled communications have limitations as they…

Information Theory · Computer Science 2022-12-19 Christodoulos Skouroumounis , Ioannis Krikidis

Fluid antenna systems (FAS) have emerged as a promising technology for next-generation wireless systems. However, practical multiuser multiple-input multiple-output FAS (MIMO-FAS) faces two inherently coupled challenges: acquiring accurate…

Information Theory · Computer Science 2026-05-29 Erqiang Tang , Wei Guo , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

In this paper, we investigate the question of which technology, fluid antenna systems (FAS) or active reconfigurable intelligent surfaces (ARIS), plays a more crucial role in FAS-ARIS wireless communication systems. To address this, we…

Signal Processing · Electrical Eng. & Systems 2024-08-20 Junteng Yao , Liaoshi Zhou , Tuo Wu , Ming Jin , Chongwen Huang , Chau Yuen