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Related papers: RIS Meets O-RAN: A Practical Demonstration of Mult…

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Reconfigurable Intelligent Surfaces (RISs) are recently attracting a wide interest due to their capability of tuning wireless propagation environments in order to increase the system performance of wireless networks. In this paper, a…

Information Theory · Computer Science 2021-03-23 Stefano Buzzi , Carmen D'Andrea , Alessio Zappone , Maria Fresia , Yong-Ping Zhang , Shulan Feng

The growing demand for high-speed, reliable wireless connectivity in 6G networks necessitates innovative approaches to overcome the limitations of traditional Radio Access Network (RAN). Reconfigurable Intelligent Surface (RIS) and…

Networking and Internet Architecture · Computer Science 2024-11-12 Reza Aghazadeh Ayoubi , Marouan Mizmizi , Eugenio Moro , Ilario Filippini , Umberto Spagnolini

Recent advances in the fabrication and experimentation of Reconfigurable Intelligent Surfaces (RISs) have motivated the concept of the smart radio environment, according to which the propagation of information-bearing waveforms in the…

Information Theory · Computer Science 2021-07-27 George C. Alexandropoulos , Nir Shlezinger , Philipp del Hougne

The adoption of a Reconfigurable Intelligent Surface (RIS) for downlink multi-user communication from a multi-antenna base station is investigated in this paper. We develop energy-efficient designs for both the transmit power allocation and…

Information Theory · Computer Science 2022-06-23 Chongwen Huang , Alessio Zappone , George C. Alexandropoulos , Mérouane Debbah , Chau Yuen

The Open Radio Access Network (O-RAN) architecture is reshaping the telecommunications landscape by enhancing network flexibility, openness, and intelligence. This paper establishes the requirements, evaluates the design tradeoffs, and…

Networking and Internet Architecture · Computer Science 2024-11-07 Joshua Moore , Aly Sabri Abdalla , Charles Ueltschey , Vuk Marojevic

The increasing complexity and dynamic nature of 5G open radio access networks (O-RAN) pose significant challenges to maintaining low latency, high throughput, and resource efficiency. While existing methods leverage machine learning for…

Machine Learning · Computer Science 2025-02-26 Raúl Parada , Ebrahim Abu-Helalah , Jordi Serra , Anton Aguilar , Paolo Dini

High-precision localization and environmental sensing are essential for a new wave of applications, ranging from industrial automation and autonomous systems to augmented reality and remote healthcare. Conventional wireless methods,…

Reconfigurable intelligent surfaces (RISs) are considered as an enabling technology for the upcoming sixth generation of wireless systems, exhibiting significant potential for radio localization and sensing. An RIS is usually treated as an…

Signal Processing · Electrical Eng. & Systems 2023-11-16 Reza Ghazalian , Hui Chen , George C. Alexandropoulos , Gonzalo Seco-Granados , Henk Wymeersch , Riku Jäntti

Cooperative rate splitting (CRS), built upon rate splitting multiple access (RSMA) and opportunistic user relaying, has been recognized as a promising transmission strategy to enhance the user fairness and spectral efficiency in…

Information Theory · Computer Science 2022-08-09 Kangchun Zhao , Yijie Mao , Zhaohui Yang , Lixiang Lian , Bruno Clerckx

Reconfigurable Intelligent Surfaces (RIS) dynamically control signal propagation to enhance wireless communications. This paper presents a novel framework for rotatable RIS assisted physical-layer multicast systems, aiming to maximize the…

Information Theory · Computer Science 2025-07-29 Ji Wang , Jiayu Tian , Lijuan Qin , Kunrui Cao , Hongbo Xu , Xingwang Li , Tony. Q. S. Quek

The concept of AI-RAN as specified by the AI-RAN alliance is geared to explore a converged 6G platform that can support management, orchestration, and deployment of both AI and RAN workloads. This concept is central to the development of a…

Networking and Internet Architecture · Computer Science 2025-09-22 Syed Danial Ali Shah , Zeinab Nezami , Maryam Hafeez , Syed Ali Raza Zaidi

The advent of reconfigurable intelligent surfaces(RISs) brings along significant improvements for wireless technology on the verge of beyond-fifth-generation networks (B5G).The proven flexibility in influencing the propagation environment…

Networking and Internet Architecture · Computer Science 2023-10-17 Guillermo Encinas-Lago , Antonio Albanese , Vincenzo Sciancalepore , Marco Di Renzo , Xavier Costa-Pérez

The O-RAN ALLIANCE is defining architectures, interfaces, operations, and security requirements for cellular networks based on Open Radio Access Network (RAN) principles. In this context, O-RAN introduced the RAN Intelligent Controllers…

Networking and Internet Architecture · Computer Science 2025-10-21 Pietro Brach del Prever , Salvatore D'Oro , Leonardo Bonati , Michele Polese , Maria Tsampazi , Heiko Lehmann , Tommaso Melodia

Reconfigurable intelligent surfaces (RISs) have promising coverage and data rate gains for wireless communication systems in 5G and beyond. Prior work has mainly focused on analyzing the performance of these surfaces using computer…

The technology of reconfigurable intelligent surfaces (RIS) has been showing promising potential in a variety of applications relying on Beyond-5G networks. Reconfigurable intelligent surface (RIS) can indeed provide fine channel…

Signal Processing · Electrical Eng. & Systems 2023-03-28 Moustafa Rahal , Benoit Denis , Kamran Keykhosravi , Musa Furkan Keskin , Bernard Uguen , George C. Alexandropoulos , Henk Wymeersch

Open Radio Access Network (O-RAN), a novel architecture that separates the traditional radio access network (RAN) into multiple disaggregated components, leads a revolution in the telecommunication ecosystems. Compared to the traditional…

Networking and Internet Architecture · Computer Science 2023-11-07 Yi-Zih Chen , Terrance Yu-Hao Chen , Po-Jung Su , Chi-Ting Liu

The disaggregated, distributed and virtualised implementation of radio access networks allows for dynamic resource allocation. These attributes can be realised by virtue of the Open Radio Access Networks (O-RAN) architecture. In this…

Signal Processing · Electrical Eng. & Systems 2024-01-17 Mohammed M. H. Qazzaz , Łukasz Kułacz , Adrian Kliks , Syed A. Zaidi , Marcin Dryjanski , Des McLernon

5G and beyond mobile telecommunication networks are increasingly embracing software technologies in their operation and control, similar to what has powered the growth of the cloud. This is most recently seen in the radio access network…

Networking and Internet Architecture · Computer Science 2025-12-03 Philip Rodgers , Paul Harvey

5G radio positioning exploits information in both angle and delay, by virtue of increased bandwidth and large antenna arrays. When large arrays are embedded in surfaces, they can passively steer electromagnetic waves in preferred directions…

Signal Processing · Electrical Eng. & Systems 2020-08-27 Henk Wymeersch , Benoît Denis

Reconfigurable Intelligent Surfaces (RISs) are promising and relatively low-cost tools for improving signal propagation in wireless communications. An RIS assists a base station in optimizing the channel and maximizing its capacity by…

Signal Processing · Electrical Eng. & Systems 2023-02-01 Andrey Sayanskiy , Andrey Belov , Ruslan Yafasov , Andrey Lyulyakin , Alexander Sherstobitov , Stanislav Glybovski , Vladimir Lyashev
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