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The emerging reconfigurable antenna (RA) array technology promises capacity enhancement through dynamic antenna positioning. Traditional approaches enforce half-wavelength or greater spacing among RA elements to avoid mutual coupling,…

Information Theory · Computer Science 2026-04-28 Elio Faddoul , Konstantinos Ntougias , Ioannis Krikidis

Due to their ability to anchor into tall urban landforms, such as lampposts or street lights, robotic aerial base stations (RABSs) can create a hyper-flexible wireless multi-hop heterogeneous network to meet the forthcoming green,…

Networking and Internet Architecture · Computer Science 2025-05-16 Wen Shang , Yuan Liao , Vasilis Friderikos , Halim Yanikomeroglu

Recent years have witnessed the rapid proliferation of backscatter technologies that realize the ubiquitous and long-term connectivity to empower smart cities and smart homes. Localizing such backscatter tags is crucial for IoT-based smart…

Signal Processing · Electrical Eng. & Systems 2020-05-28 Shengkai Zhang , Wei Wang , Sheyang Tang , Shi Jin , Tao Jiang

Contemporary wireless communication systems rely on Multi-User Multiple-Input Multiple-Output (MU-MIMO) techniques. In such systems, each Access Point (AP) is equipped with multiple antenna elements and serves multiple devices…

Information Theory · Computer Science 2024-12-24 Eduardo Noboro Tominaga , Onel Luis Alcaraz López , Tommy Svensson , Richard Demo Souza , Hirley Alves

Achieving high-rate communication with accurate localization and wireless environment sensing has emerged as an important trend of beyond-fifth and sixth generation cellular systems. Extension of the antenna array to an extremely large…

Information Theory · Computer Science 2020-12-22 Jie Yang , Yong Zeng , Shi Jin , Chao-Kai Wen , Pingping Xu

Internet-of-Things (IoT) is featured with low-power communications among a massive number of ubiquitously-deployed and energy-constrained electronics, e.g., sensors and actuators. To cope with the demand, wireless-powered cooperative…

Information Theory · Computer Science 2021-02-03 Xiao Lu , Dusit Niyato , Hai Jiang , Ekram Hossain , Ping Wang

This paper considers an antenna structure where a (non-large) array of radiating elements is placed at short distance in front of a reconfigurable intelligent surface (RIS), herein nicknamed reconfigurable intelligent base station (RIBS).…

Information Theory · Computer Science 2024-10-24 Giovanni Interdonato , Francesca Di Murro , Carmen D'Andrea , Giovanni Di Gennaro , Stefano Buzzi

The scale of wireless technologies penetration in our daily lives, primarily triggered by the Internet-of-things (IoT)-based smart cities, is beaconing the possibilities of novel localization and tracking techniques. Recently, low-power…

Signal Processing · Electrical Eng. & Systems 2020-06-03 Mahnoor Anjum , Muhammad Abdullah Khan , Syed Ali Hassan , Aamir Mahmood , Hassaan Khaliq Qureshi , Mikael Gidlund

A radar and communication integration (RCI) system has great flexibility in allocating antenna resources to guarantee both radar and communication performance. This paper considers the array allocation problems for multiple target…

Signal Processing · Electrical Eng. & Systems 2020-10-09 Zhenkai Zhang , Hamid Esmaeili Najafabadi , Henry Leung

In the development of wireless communication technology, multiple-input multiple-output (MIMO) technology has emerged as a key enabler, significantly enhancing the capacity of communication systems. However, traditional MIMO systems, which…

Signal Processing · Electrical Eng. & Systems 2025-03-17 Ruojing Zhao , Yifei Xu , Songjie Yang , Hua Chen , Chadi Assi

Reconfigurable antennas (RAs) and movable antennas (MAs) have been recognized as promising technologies to enhance the performance of wireless communication and sensing systems by introducing additional degrees of freedom (DoFs) in tuning…

Signal Processing · Electrical Eng. & Systems 2026-02-23 Wenyan Ma , Lipeng Zhu , Yanhua Tan , Beixiong Zheng , Yujie Zhang , Yuchen Zhang , Keke Ying , Zhen Gao , He Sun , Xiaodan Shao , Zhenyu Xiao , Dusit Niyato , Rui Zhang

Cell-free massive MIMO (multiple-input multiple-output) is a promising network architecture for beyond 5G systems, which can particularly offer more uniform data rates across the coverage area. Recent works have shown how reconfigurable…

Signal Processing · Electrical Eng. & Systems 2024-09-25 Özlem Tuğfe Demir , Emil Björnson

Movable antennas (MAs) show great promise for enhancing the sensing capabilities of future sixth-generation (6G) networks. With the growing prevalence of near-field propagation at ultra-high frequencies, this paper focuses on the…

Signal Processing · Electrical Eng. & Systems 2025-04-08 Yushen Wang , Weidong Mei , Xin Wei , Boyu Ning , Zhi Chen

Range-based localization is ubiquitous: global navigation satellite systems (GNSS) power mobile phone-based navigation, and autonomous mobile robots can use range measurements from a variety of modalities including sonar, radar, and even…

Robotics · Computer Science 2024-05-21 Ethan Sequeira , Hussein Saad , Stephen Kelly , Matthew Giamou

Caching at base stations is a promising technology to satisfy the increasing capacity requirements and reduce the backhaul loads in future wireless networks. Careful design of random caching can fully exploit the file popularity and achieve…

Information Theory · Computer Science 2017-09-20 Sufeng Kuang , Nan Liu

Movable antennas (MAs) are a promising paradigm to enhance the spatial degrees of freedom of conventional multi-antenna systems by flexibly adapting the positions of the antenna elements within a given transmit area. In this paper, we model…

Information Theory · Computer Science 2023-08-07 Yifei Wu , Dongfang Xu , Derrick Wing Kwan Ng , Wolfgang Gerstacker , Robert Schober

The emergence of movable antenna (MA) technology provides a promising way to enhance wireless sensing and communication by introducing spatial degrees of freedom through dynamic array reconfiguration. In near-field localization, achieving…

Signal Processing · Electrical Eng. & Systems 2026-05-01 Yuxin Duan , Boyu Teng , Xiaojun Yuan , Rui Wang

One of the trends that is gaining more and more importance in the field of beyond-5G and 6G wireless communication systems is the investigation on systems that jointly perform communication and sensing of the environment. This paper…

Information Theory · Computer Science 2019-12-03 Stefano Buzzi , Carmen D'Andrea , Marco Lops

5G mmWave MIMO systems enable accurate estimation of the user position and mapping of the radio environment using a single snapshot when both the base station (BS) and user are equipped with large antenna arrays. However, massive arrays are…

Signal Processing · Electrical Eng. & Systems 2020-07-30 Alessio Fascista , Angelo Coluccia , Henk Wymeersch , Gonzalo Seco-Granados

Recent advancements in Deep Learning (DL) for Direction of Arrival (DOA) estimation have highlighted its superiority over traditional methods, offering faster inference, enhanced super-resolution, and robust performance in low…

Signal Processing · Electrical Eng. & Systems 2024-05-07 Ruxin Zheng , Shunqiao Sun , Hongshan Liu , Honglei Chen , Mojtaba Soltanalian , Jian Li
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