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Reconfigurable-antenna systems have received increasing attention for their ability to adapt wireless channels. However, existing architectures exhibit scenario-dependent limitations: fluid antennas provide strong diversity gains in…

Signal Processing · Electrical Eng. & Systems 2026-05-12 Xiao Lin , Yizhe Zhao , Xiangyang Wang , Halvin Yang , Bingxin Zhang

Reconfigurable antenna systems (RASs), such as fluid antennas and movable antennas, are poised to play a pivotal role in sixth-generation (6G) systems by dynamically adapting the antenna elements for system performance enhancement. However,…

Signal Processing · Electrical Eng. & Systems 2026-04-27 Chen Xu , Xianghao Yu

While fifth-generation (5G) communications are being rolled out worldwide, sixth-generation (6G) communications have attracted much attention from both the industry and the academia. Compared with 5G, 6G will have a wider frequency band,…

Signal Processing · Electrical Eng. & Systems 2021-02-17 Yang Zhao , Wenchao Zhai , Jun Zhao , Tinghao Zhang , Sumei Sun , Dusit Niyato , Kwok-Yan Lam

The revolutionary convergence of fluid antenna systems (FAS) and reconfigurable intelligent surfaces (RIS) creates unprecedented opportunities for secure wireless communications, yet the practical implications of hardware impairments on…

Signal Processing · Electrical Eng. & Systems 2026-03-10 Tuo Wu , Jianchao Zheng , Xiazhi Lai , Maged Elkashlan , Hyundong Shin , Naofal Al-Dhahir

The integration of reconfigurable intelligent surfaces (RIS) and fluid antenna systems (FAS) has attracted considerable attention due to its tremendous potential in enhancing wireless communication performance. However, under fast-fading…

Networking and Internet Architecture · Computer Science 2025-11-04 Kaining Wang , Bo Yang , Yusheng Lei , Zhiwen Yu , Xuelin Cao , Liang Wang , Bin Guo , George C. Alexandropoulos , Mérouane Debbah , Zhu Han

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.…

Antenna arrays have a long history of more than 100 years and have evolved closely with the development of electronic and information technologies, playing an indispensable role in wireless communications and radar. With the rapid…

Information Theory · Computer Science 2022-03-29 Zhenyu Xiao , Zhu Han , Arumugam Nallanathan , Octavia A. Dobre , Bruno Clerckx , Jinho Choi , Chong He , Wen Tong

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

In this paper, we investigate the problem of rate maximization in a fluid antenna system (FAS) assisted semantic communication system. In the considered model, a base station (BS) with multiple static antennas employs semantic extraction…

Signal Processing · Electrical Eng. & Systems 2025-07-01 Siyun Liang , Chen Zhu , Zhaohui Yang , Changsheng You , Dusit Niyato , Kai-Kit Wong , Zhaoyang Zhang

With the emergence of communication services with stringent requirements such as autonomous driving or on-flight Internet, the sixth-generation (6G) wireless network is envisaged to become an enabling technology for future transportation…

Information Theory · Computer Science 2024-02-20 Ruiqi Liu , Meng Hua , Ke Guan , Xiping Wang , Leyi Zhang , Tianqi Mao , Di Zhang , Qingqing Wu , Abbas Jamalipour

Fluid antenna (FA) technology has emerged as a promising approach in wireless communications due to its capability of providing increased degrees of freedom (DoFs) and exceptional design flexibility. This paper addresses the challenge of…

Signal Processing · Electrical Eng. & Systems 2025-08-15 He Xu , Tuo Wu , Ye Tian , Kangda Zhi , Wei Liu , Baiyang Liu , Hing Cheung So , Naofal Al-Dhahir , Kin-Fai Tong , Chan-Byoung Chae , Kai-Kit Wong

6G networks will be required to support higher data rates, improved energy efficiency, lower latency, and more diverse users compared with 5G systems. To meet these requirements, electrically extremely large-scale antenna arrays are…

Signal Processing · Electrical Eng. & Systems 2022-12-13 Haiyang Zhang , Nir Shlezinger , Francesco Guidi , Davide Dardari , Yonina C. Eldar

Current network access infrastructures are characterized by heterogeneity, low latency, high throughput, and high computational capability, enabling massive concurrent connections and various services. Unfortunately, this design does not…

Networking and Internet Architecture · Computer Science 2021-03-02 Nhu-Ngoc Dao , Quoc-Viet Pham , Ngo Hoang Tu , Tran Thien Thanh , Vo Nguyen Quoc Bao , Demeke Shumeye Lakew , Sungrae Cho

As wireless communication systems continue to grow rapidly, high-performance antennas become increasingly crucial for expanding coverage, improving capacity, and enhancing transmission quality. In light of this, research has focused…

Signal Processing · Electrical Eng. & Systems 2025-12-22 Sasmita Dash , Constantinos Psomas , Ioannis Krikidis

The synergy of fluid-based reconfigurable antenna (FA) technology and full-duplex (FD) communications can be jointly beneficial, as FD can enhance the spectral efficiency of a point-to-point link, while the new degree of freedom offered by…

Information Theory · Computer Science 2023-04-11 Christodoulos Skouroumounis , Ioannis Krikidis

Fluid antenna systems (FAS) offer enhanced spatial diversity for next-generation wireless systems. However, acquiring accurate channel state information (CSI) remains challenging due to the large number of reconfigurable ports and the…

Information Theory · Computer Science 2025-05-09 Erqiang Tang , Wei Guo , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

Extremely large-scale antenna arrays, tremendously high frequencies, and new types of antennas are three clear trends in multi-antenna technology for supporting the sixth-generation (6G) networks. To properly account for the new…

Information Theory · Computer Science 2024-09-09 Yuanwei Liu , Zhaolin Wang , Jiaqi Xu , Chongjun Ouyang , Xidong Mu , Robert Schober

Non-fixed flexible antenna architectures, such as fluid antenna system (FAS), movable antenna (MA), and pinching antenna, have garnered significant interest in recent years. Among them, rotatable antenna (RA) is an emerging technology that…

Information Theory · Computer Science 2025-09-05 Beixiong Zheng , Tiantian Ma , Changsheng You , Jie Tang , Robert Schober , Rui Zhang

Internet-of-Things (IoT) networks typically rely on satellite communications to provide coverage in rural areas. However, high-mobility satellite links introduce severe Doppler and delay spreads, which necessitate the use of orthogonal time…

Signal Processing · Electrical Eng. & Systems 2025-05-15 Halvin Yang , Mahsa Derakhshani , Sangarapillai Lambotharan , Lajos Hanzo

This paper develops a comprehensive framework for the performance analysis of fluid antenna system (FAS)-enabled unmanned aerial vehicle (UAV) relaying networks operating in the finite blocklength regime. Our contribution lies in…

Information Theory · Computer Science 2025-12-01 Xusheng Zhu , Kai-Kit Wong , Hanjiang Hong , Han Xiao , Hao Xu , Tuo Wu , Chan-Byoung Chae