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Mounting a reconfigurable intelligent surface (RIS) on an unmanned aerial vehicle (UAV) holds promise for improving traditional terrestrial network performance. Unlike conventional methods deploying passive RIS on UAVs, this study delves…

This paper explores the feasibility of leveraging concepts from deep reinforcement learning (DRL) to enable dynamic resource management in Wi-Fi networks implementing distributed multi-user MIMO (D-MIMO). D-MIMO is a technique by which a…

A reconfigurable intelligent surface (RIS) is commonly made of low-cost passive and reflective meta-materials with excellent beam steering capabilities. It is applied to enhance wireless communication systems as a customizable signal…

Signal Processing · Electrical Eng. & Systems 2024-07-16 Kun Chen-Hu , Petar Popovski

Secure communications are of paramount importance in spectrum sharing networks due to the allocation and sharing characteristics of spectrum resources. To further explore the potential of intelligent reflective surfaces (IRSs) in enhancing…

Information Theory · Computer Science 2023-12-05 Lingyi Wang , Wei Wu , Fuhui Zhou , Qihui Wu , Octavia A. Dobre , Tony Q. S. Quek

Aerial simultaneous transmitting and reflecting reconfigurable intelligent surfaces (STAR-RIS) enables full-space coverage in dynamic wireless networks. However, most existing works assume fixed user grouping, overlooking the fact that…

Systems and Control · Electrical Eng. & Systems 2026-03-19 Zhuoyuan Ma , Qi Zhao , Jin Zhang , Bai Yan

Network Slice placement with the problem of allocation of resources from a virtualized substrate network is an optimization problem which can be formulated as a multiobjective Integer Linear Programming (ILP) problem. However, to cope with…

Networking and Internet Architecture · Computer Science 2021-05-17 Jose Jurandir Alves Esteves , Amina Boubendir , Fabrice Guillemin , Pierre Sens

Reconfigurable Intelligent Surfaces (RIS) have emerged as a transformative technology in wireless communications, offering unprecedented control over signal propagation. This study focuses on passive beyond diagonal reconfigurable…

Signal Processing · Electrical Eng. & Systems 2025-12-10 Ainna Yue Moreno-Locubiche , Josep Vidal

Resource allocation in integrated sensing and communication (ISAC) systems needs to be optimized to balance the requirements of the communication and sensing modules considering complicated cross-layer data traffic and queue status in…

Signal Processing · Electrical Eng. & Systems 2026-04-28 Xiyu Wang , Gilberto Berardinelli , Hei Victor Cheng , Petar Popovski , Ramoni Adeogun

Deep reinforcement learning (DRL) is a promising outer-loop intelligence paradigm which can deploy problem solving strategies for complex tasks. Consequently, DRL has been utilized for several scientific applications, specifically in cases…

Machine Learning · Computer Science 2023-04-05 Sahil Bhola , Suraj Pawar , Prasanna Balaprakash , Romit Maulik

Reconfigurable intelligent surfaces (RISs) enhance unmanned aerial vehicles (UAV)-assisted communication by extending coverage, improving efficiency, and enabling adaptive beamforming. This paper investigates a multiple-input single-output…

Information Theory · Computer Science 2025-10-28 Mahmoud M. Salim , Khaled M. Rabie , Ali H. Muqaibel

Reconfigurable Intelligent Surfaces (RISs) are regarded as a key technology for future wireless communications, enabling programmable radio propagation environments. However, the passive reflecting feature of RISs induces notable challenges…

Signal Processing · Electrical Eng. & Systems 2022-02-15 Liuhang Wang , Nir Shlezinger , George C. Alexandropoulos , Haiyang Zhang , Baoyun Wang , Yonina C. Elda

With the rapid deployment of the Internet of Things (IoT), fifth-generation (5G) and beyond 5G networks are required to support massive access of a huge number of devices over limited radio spectrum radio. In wireless networks, different…

Signal Processing · Electrical Eng. & Systems 2020-12-18 Helin Yang , Zehui Xiong , Jun Zhao , Dusit Niyato , Chau Yuen , Ruilong Deng

The recent breakthroughs of deep reinforcement learning (DRL) technique in Alpha Go and playing Atari have set a good example in handling large state and actions spaces of complicated control problems. The DRL technique is comprised of (i)…

Artificial Intelligence · Computer Science 2017-10-12 Hongjia Li , Tianshu Wei , Ao Ren , Qi Zhu , Yanzhi Wang

Intelligent reflecting surface (IRS) is a revolutionary and low-cost technology for boosting the spectrum and energy efficiencies in future wireless communication network. In order to create controllable multipath transmission in the…

Information Theory · Computer Science 2022-07-12 Rongen Dong , Shaohua Jiang , Xinhai Hua , Yin Teng , Feng Shu , Jiangzhou Wang

Taking advantage of both vehicle-to-everything (V2X) communication and automated driving technology, connected and automated vehicles are quickly becoming one of the transformative solutions to many transportation problems. However, in a…

Systems and Control · Electrical Eng. & Systems 2022-09-01 Zhengwei Bai , Peng Hao , Wei Shangguan , Baigen Cai , Matthew J. Barth

Applications of intelligent reflecting surfaces (IRSs) in wireless networks have attracted significant attention recently. Most of the relevant literature is focused on the single cell setting where a single IRS is deployed and perfect…

Signal Processing · Electrical Eng. & Systems 2021-04-02 Junghoon Kim , Seyyedali Hosseinalipour , Taejoon Kim , David J. Love , Christopher G. Brinton

In this paper, we propose a dynamic hybrid active-passive reconfigurable intelligent surface (HRIS) to enhance multiple-input-single-output (MISO) communications, leveraging the property of dynamically placing active elements. Specifically,…

Information Theory · Computer Science 2024-10-10 Jintao Wang , Binggui Zhou , Chengzhi Ma , Shiqi Gong , Guanghua Yang , Shaodan Ma

We study the joint active/passive beamforming and channel blocklength (CBL) allocation in a non-ideal reconfigurable intelligent surface (RIS)-aided ultra-reliable and low-latency communication (URLLC) system. The considered scenario is a…

Information Theory · Computer Science 2024-10-28 Ramin Hashemi , Samad Ali , Nurul Huda Mahmood , Matti Latva-aho

Reconfigurable intelligent surface (RIS) has become a promising technology to improve wireless communication in recent years. It steers the incident signals to create a favorable propagation environment by controlling the reconfigurable…

Information Theory · Computer Science 2021-11-15 Wangyang Xu , Lu Gan , Chongwen Huang

This work focuses on the use of reconfigurable intelligent surface (RIS) in dual-function radar-communication (DFRC) systems to improve communication capacity and sensing precision, and enhance coverage for both functions. In contrast to…

Signal Processing · Electrical Eng. & Systems 2024-09-10 Bowen Wang , Hongyu Li , Shanpu Shen , Ziyang Cheng , Bruno Clerckx