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This paper develops a framework for analyzing UAV-enabled short-packet communication, leveraging fluid antenna system (FAS)-assisted relaying networks. Operating in the short-packet regime and focusing on challenging urban environments, we…

Information Theory · Computer Science 2026-02-09 Xusheng Zhu , Kai-Kit Wong , Hanjiang Hong , Han Xiao , Hao Xu , Tuo Wu , Chan-Byoung Chae

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 multiple access (FAMA) that can support massive connectivity on…

Signal Processing · Electrical Eng. & Systems 2025-09-25 Chenguang Rao , Kai-Kit Wong , Mohd Hamza Naim Shaikh , Hanjiang Hong , Hyundong Shin , Yangyang Zhang

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 station (BS) equipped with multiple fluid antennas communicates…

Signal Processing · Electrical Eng. & Systems 2024-12-23 Junteng Yao , Tuo Wu , Liaoshi Zhou , Ming Jin , Cunhua Pan , Maged Elkashlan , Fumiyuki Adachi , George K. Karagiannidis , Naofal Al-Dhahir , Chau Yuen

In the evolving environment of mobile edge computing (MEC), optimizing system performance to meet the growing demand for low-latency computing services is a top priority. Integrating fluidic antenna (FA) technology into MEC networks…

Information Theory · Computer Science 2024-03-19 Yiping Zuo , Jiajia Guo , Biyun Sheng , Chen Dai , Fu Xiao , Shi Jin

This work proposes a generative modeling-aided channel estimator based on mixtures of factor analyzers (MFA). In an offline step, the parameters of the generative model are inferred via an expectation-maximization (EM) algorithm in order to…

Signal Processing · Electrical Eng. & Systems 2023-05-02 Benedikt Fesl , Nurettin Turan , Wolfgang Utschick

This paper is concerned with the channel estimation problem in Millimeter wave (mmWave) wireless systems with large antenna arrays. By exploiting the inherent sparse nature of the mmWave channel, we first propose a fast channel estimation…

Information Theory · Computer Science 2016-11-17 Matthew Kokshoorn , He Chen , Peng Wang , Yonghui Li , Branka Vucetic

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

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

Cognitive radio (CR) networks face significant challenges in spectrum sensing, especially under spectrum scarcity. Fluid antenna systems (FAS) can offer an unorthodox solution due to their ability to dynamically adjust antenna positions for…

Signal Processing · Electrical Eng. & Systems 2024-11-14 Junteng Yao , Ming Jin , Tuo Wu , Maged Elkashlan , Chau Yuen , Kai-Kit Wong , George K. Karagiannidis , Hyundong Shin

Fluid Antenna System (FAS) is recognized as a promising technology for enhancing communication performance. In this context, we explored the potential of FAS-assisted wireless powered communication systems. Specifically, the transmitter,…

Signal Processing · Electrical Eng. & Systems 2024-02-06 Xiazhi Lai , Kangda Zhi , Wanyi Li , Tuo Wu , Cunhua Pan , Maged Elkashlan

This paper presents the concept, design, channel modeling, beamforming algorithm development, prototype fabrication, and experimental measurement of an electromagnetically reconfigurable fluid antenna system (ER-FAS), in which each FAS…

Signal Processing · Electrical Eng. & Systems 2025-10-17 Ruiqi Wang , Pinjun Zheng , Vijith Varma Kotte , Sakandar Rauf , Yiming Yang , Muhammad Mahboob Ur Rahman , Tareq Y. Al-Naffouri , Atif Shamim

This paper investigates a fluid antenna system (FAS) where a single-antenna transmitter communicates with a receiver equipped with a fluid antenna (FA) over a Rician fading channel. Considering that multiple ports among the M available FA…

Signal Processing · Electrical Eng. & Systems 2025-11-13 Tummi Ganesh , Soumya P. Dash , Italo Atzeni

As a pivotal usage scenario for 6G networks, integrated sensing and communication (ISAC) has emerged as a focal point of both academic and industrial research. To accommodate the heterogeneous connectivity requirements of future networks…

Signal Processing · Electrical Eng. & Systems 2026-04-29 Qinyuan Zheng , Pengcheng Zhu

Stacked intelligent metasurfaces (SIMs) and fluid antenna systems (FAS) are emerging technologies for wave-domain and spatial signal manipulation, respectively.This letter proposes a novel joint SIM-FAS communication model in which…

Information Theory · Computer Science 2026-05-22 Anastasios Papazafeiropoulos

This letter studies the performance of reconfigurable intelligent surface (RIS)-aided communications for a fluid antenna system (FAS) enabled receiver. Specifically, a fixed singleantenna base station (BS) transmits information through a…

Information Theory · Computer Science 2024-02-27 Farshad Rostami Ghadi , Kai-Kit Wong , Wee Kiat New , Hao Xu , Ross Murch , Yangyang Zhang

The flexibility and reconfigurability at the radio frequency (RF) front-end offered by the fluid antenna system (FAS) make this technology promising for providing remarkable diversity gains in networks with small and constrained devices.…

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 wireless communication, accurate channel state information (CSI) is of pivotal importance. In practice, due to processing and feedback delays, estimated CSI can be outdated, which can severely deteriorate the performance of the…

Signal Processing · Electrical Eng. & Systems 2021-04-02 Muhammad Karam Shehzad , Luca Rose , Mohamad Assaad

Fluid antenna system (FAS) as a new version of reconfigurable antenna technologies promoting shape and position flexibility, has emerged as an exciting and possibly transformative technology for wireless communications systems. FAS…

This paper investigates the performance of a multi-reconfigurable intelligent surface (RIS)-assisted fluid antenna system (FAS). In this system, a single-antenna transmitter communicates with a receiver equipped with a planar FAS through…

Signal Processing · Electrical Eng. & Systems 2025-04-29 Mahmoud Aldababsa , Taissir Y. Elganimi , Mahmoud A. Albreem , Saeed Abdallah