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Rapid developments in synthetic aperture (SA) systems, which generate a larger aperture with greater angular resolution than is inherently possible from the physical dimensions of a single sensor alone, are leading to novel research avenues…

Signal Processing · Electrical Eng. & Systems 2023-06-28 Peter Vouras , Kumar Vijay Mishra , Alexandra Artusio-Glimpse , Samuel Pinilla , Angeliki Xenaki , David W. Griffith , Karen Egiazarian

Dynamic metasurface antennas (DMAs) represent a novel approach to programmable and affordable electromagnetic wave manipulation for enhanced wireless communications, sensing, and imaging applications. Nevertheless, current DMA designs and…

Signal Processing · Electrical Eng. & Systems 2025-10-24 Abdul Jabbar , Aakash Bansal , William Whittow

This letter rethinks traditional precoding in multi-user wireless communications with movable antennas (MAs). Utilizing MAs for optimal antenna positioning, we introduce a sparse optimization (SO)-based approach focusing on regularized…

Information Theory · Computer Science 2024-03-15 Songjie Yang , Wanting Lyu , Boyu Ning , Zhongpei Zhang , Chau Yuen

Movable antenna (MA) has been recognized as a promising technology to improve communication performance in future wireless networks such as 6G. To unleash its potential, this paper proposes a novel architecture, namely extremely large-scale…

Information Theory · Computer Science 2025-06-04 Min Fu , Lipeng Zhu , Rui Zhang

The pinching-antenna system (PASS), recently proposed as a flexible-antenna technology, has been regarded as a promising solution for several challenges in next-generation wireless networks. It provides large-scale antenna reconfiguration,…

Integrated sensing and communication (ISAC) has been recognized as a key technology in sixth-generation wireless networks, and the additional spatial degrees of freedom obtained by movable antenna (MA) technology can significantly improve…

Signal Processing · Electrical Eng. & Systems 2025-12-05 Luyang Sun , Zhiqing Wei , Haotian Liu , Kan Yu , Zhendong Li , Zhiyong Feng

Backscatter communication (BC) becomes a promising energy-efficient solution for future wireless sensor networks (WSNs). Unmanned aerial vehicles (UAVs) enable flexible data collection from remote backscatter devices (BDs), yet conventional…

Signal Processing · Electrical Eng. & Systems 2024-11-22 Yu Bai , Boxuan Xie , Ruifan Zhu , Zheng Chang , Riku Jantti

Rotatable antenna (RA) is an emerging technology that has great potential to exploit additional spatial degrees of freedom (DoFs) by flexibly altering the three-dimensional (3D) orientation/boresight of each antenna. In this demonstration,…

Systems and Control · Electrical Eng. & Systems 2025-03-25 Liang Dai , Beixiong Zheng , Yanhua Tan , Lipeng Zhu , Fangjiong Chen , Rui Zhang

This article presents a tutorial on multiuser multiple-antenna wireless systems with a very large number of antennas, known as massive multi-input multi-output (MIMO) systems. Signal processing challenges and future trends in the area of…

Information Theory · Computer Science 2013-10-29 R. C. de Lamare

The concept of fluid antennas (FAs) has emerged as a promising solution to enhance the spectral efficiency of wireless networks, achieved by introducing additional degrees of freedom, including reconfigurability and flexibility. In this…

Information Theory · Computer Science 2024-08-12 Elio Faddoul , Ghassan M. Kraidy , Constantinos Psomas , Ioannis Krikidis

Multi-path sensing, which aims to extract the geometric attributes of multiple propagation paths, is expected to be a key functionality of 6G. A movable antenna (MA) can enable this functionality by creating a synthetic aperture through…

Information Theory · Computer Science 2026-04-14 Jaehong Kim , Jihong Park , Changsheng You , Seung-Woo Ko

Flexible antenna arrays (FAAs), distinguished by their rotatable, bendable, and foldable properties, are extensively employed in flexible radio systems to achieve customized radiation patterns. This paper aims to illustrate that FAAs,…

Signal Processing · Electrical Eng. & Systems 2025-04-01 Songjie Yang , Jiancheng An , Yue Xiu , Wanting Lyu , Boyu Ning , Zhongpei Zhang , Merouane Debbah , Chau Yuen

Dynamic metasurface antennas (DMA) provide low-power beamforming through reconfigurable radiative slots. Each slot has a tunable component that consumes low power compared to typical analog components like phase shifters. This makes DMAs a…

Signal Processing · Electrical Eng. & Systems 2025-10-10 Joseph M. Carlson , Nitish V. Deshpande , Miguel Rodrigo Castellanos , Robert W. Heath

This paper investigates the potential of movable antenna (MA)-enabled micro-mobility to replace UAV-enabled macro-mobility for enhancing physical layer security (PLS) in air-to-ground communications. While UAV trajectory optimization offers…

Information Theory · Computer Science 2025-06-25 Kaixuan Li , Kan Yu , Dingyou Ma , Yujia Zhao , Xiaowu Liu , Qixun Zhang , ZHiyong Feng

Fluid antennas (FAs) and mobile antennas (MAs) are innovative technologies in wireless communications that are able to proactively improve channel conditions by dynamically adjusting the transmit/receive antenna positions within a given…

Signal Processing · Electrical Eng. & Systems 2024-08-19 Weidong Mei , Xin Wei , Yijie Liu , Boyu Ning , Zhi Chen

Multiple-antenna technologies are evolving towards larger aperture sizes, extremely high frequencies, and innovative antenna types. This evolution is fostering the emergence of near-field communications (NFC) in future wireless systems.…

Signal Processing · Electrical Eng. & Systems 2024-10-04 Yuanwei Liu , Chongjun Ouyang , Zhaolin Wang , Jiaqi Xu , Xidong Mu , A. Lee Swindlehurst

6DMA (six-dimensional movable antenna) is a new and revolutionizing technology that fully exploits the wireless channel spatial variation at the transmitter/receiver by flexibly adjusting the three-dimensional (3D) positions and 3D…

Information Theory · Computer Science 2024-06-12 Xiaodan Shao , Rui Zhang

Fluid antenna systems (FAS) have recently emerged as a promising paradigm for achieving spatially reconfigurable, compact, and energy-efficient wireless communications in beyond fifth-generation (B5G) and sixth-generation (6G) networks. By…

Signal Processing · Electrical Eng. & Systems 2026-02-02 Saeid Pakravan , Mohsen Ahmadzadeh , Ming Zeng , Wessam Ajib , Ji Wang , Xingwang Li

This paper proposes a movable-antenna-based index modulation (MA-IM) framework that exploits the spatial mobility of a single reconfigurable antenna to create additional information-bearing dimensions for next-generation wireless systems.…

Signal Processing · Electrical Eng. & Systems 2026-03-30 Bang Huang , Shunyuan Shang , Mohamed-Slim Alouini

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…