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Related papers: Ampli-Flection for 6G: Active-RIS-Aided Aerial Bac…

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In this paper, we propose a novel wireless architecture, mounted on a high-altitude aerial platform, which is enabled by reconfigurable intelligent surface (RIS). By installing RIS on the aerial platform, rich line-of-sight and full-area…

Signal Processing · Electrical Eng. & Systems 2022-02-03 Hong-Bae Jeon , Sung-Ho Park , Jaedon Park , Kaibin Huang , Chan-Byoung Chae

A potential candidate technology for the development of future 6G networks has been recognized as Reconfigurable Intelligent Surface (RIS). However, due to the variation in radio link quality, traditional passive RISs only accomplish a…

Signal Processing · Electrical Eng. & Systems 2023-09-26 Rashed Hasan Ratul , Muhammad Iqbal , Tabinda Ashraf , Jen-Yi Pan , Yi-Han Wang , Shao-Yu Lien

Drones are envisaged as an important part of the future 6G systems. With the possibility of their fast deployment they provide additional connectivity options in form of a hotspot. However, typically in such a use case they require…

Networking and Internet Architecture · Computer Science 2024-03-11 Salim Janji , Paweł Sroka

Reconfigurable intelligent surface (RIS) and simultaneously transmitting and reflecting RIS (STAR-RIS) have emerged as key enablers for enhancing wireless coverage and capacity in next-generation networks. When mounted on unmanned aerial…

Artificial Intelligence · Computer Science 2025-12-10 Dongdong Yang , Bin Li , Jiguang He

5G network operators consider the dense deployment of small base-stations (SBSs) to increase network coverage and capacity. Hence, operators face the challenge of X-hauling, i.e., backhauling or fronthauling, their traffic to the core…

Information Theory · Computer Science 2022-07-11 Mohamed Y. Selim , Ahmed E. Kamal , Farid Nait-Abdesselam

The requirement of wireless data demands is increasingly high as the sixth-generation (6G) technology evolves. Reconfigurable intelligent surface (RIS) is promisingly deemed to be one of 6G techniques for extending service coverage,…

Signal Processing · Electrical Eng. & Systems 2023-11-09 Li-Hsiang Shen , Kai-Ten Feng , Ta-Sung Lee , Yuan-Chun Lin , Shih-Cheng Lin , Chia-Chan Chang , Sheng-Fuh Chang

As a revolutionary paradigm for controlling wireless channels, reconfigurable intelligent surfaces (RISs) have emerged as a candidate technology for future 6G networks. However, due to the "multiplicative fading" effect, the existing…

Information Theory · Computer Science 2023-01-20 Zijian Zhang , Linglong Dai , Xibi Chen , Changhao Liu , Fan Yang , Robert Schober , H. Vincent Poor

Future 6G non-terrestrial networks aim to deliver ubiquitous connectivity to remote and undeserved regions, but unmanned aerial vehicle (UAV) base stations face fundamental challenges such as limited numbers and power budgets. To overcome…

Signal Processing · Electrical Eng. & Systems 2026-02-11 Arman Azizi , Mostafa Rahmani Ghourtani , Mustafa A. Kishk , Hamed Ahmadi , Arman Farhang

In this paper, we study the problem of joint active and passive beamforming for reconfigurable intelligent surface (RIS)-assisted massive multiple-input multiple-output systems towards the extension of the wireless cellular coverage in 3D,…

Signal Processing · Electrical Eng. & Systems 2023-12-18 Yu Tian , Ahmed Alhammadi , Jiguang He , Aymen Fakhreddine , Faouzi Bader

Reconfigurable intelligent surfaces (RISs) have emerged as a candidate technology for future 6G networks. However, due to the "multiplicative fading" effect, the existing passive RISs only achieve a negligible capacity gain in environments…

Information Theory · Computer Science 2023-01-20 Zijian Zhang , Linglong Dai , Xibi Chen , Changhao Liu , Fan Yang , Robert Schober , H. Vincent Poor

Reconfigurable Intelligent Surfaces (RIS) have been proposed as a revolutionary technology with the potential to address several critical requirements of 6G communication systems. Despite its powerful ability for radio environment…

Signal Processing · Electrical Eng. & Systems 2024-01-09 Yun Yang , Zhiping Lu , Ming Li , Rang Liu , Qian Liu

Reconfigurable intelligent surfaces (RISs) bring various benefits to the current and upcoming wireless networks, including enhanced spectrum and energy efficiency, soft handover, transmission reliability, and even localization accuracy.…

Signal Processing · Electrical Eng. & Systems 2023-10-03 Jiguang He , Aymen Fakhreddine , Arthur S. de Sena , Yu Tian , Merouane Debbah

Reconfigurable Intelligent Surface (RIS) is one of the promising techniques for 6G wireless communications, and recently has also been shown to be able to improve secure communications. However, there is a "double fading" effect in the…

Information Theory · Computer Science 2022-12-07 Weigang Lv , Jiale Bai , Qingli Yan , Hui-Ming Wang

The reconfigurable intelligent surface (RIS) technology is a potential solution to enhance network capacity and coverage without significant investment in additional infrastructure in 6G networks. This work highlights the interest of the…

Reconfigurable intelligent surface (RIS) has emerged as a pivotal technology for enhancing wireless networks. Compared to terrestrial RIS deployed on building facades, aerial RIS (ARIS) mounted on quadrotor unmanned aerial vehicle (UAV)…

Signal Processing · Electrical Eng. & Systems 2025-10-30 Bin Li , Dongdong Yang , Lei Liu , Dusit Niyato

The sixth-generation (6G) wireless technology recognizes the potential of reconfigurable intelligent surfaces (RIS) as an effective technique for intelligently manipulating channel paths through reflection to serve desired users.…

Information Theory · Computer Science 2023-11-21 Li-Hsiang Shen , Chia-Jou Ku , Kai-Ten Feng

We consider reconfigurable intelligent surface (RIS) aided sixth-generation (6G) terahertz (THz) communications for indoor environment in which a base station (BS) wishes to send independent messages to its serving users with the help of…

Information Theory · Computer Science 2023-03-22 Najam Us Saqib , Shumei Hou , Sung Ho Chae , Sang-Woon Jeon

To address high data traffic demands of sixth-generation (6G) networks, this paper proposes a novel architecture that integrates autonomous aerial vehicles (AAVs) and multi-functional reconfigurable intelligent surfaces (MF-RISs) as AM-RIS…

Information Theory · Computer Science 2026-04-20 Li-Hsiang Shen , Yu-Quan Zheng

The reconfigurable intelligent surface (RIS) technology shows great potential in sixth-generation (6G) terrestrial and non-terrestrial networks (NTNs) since it can effectively change wireless settings to improve connectivity. Extensive…

Signal Processing · Electrical Eng. & Systems 2025-02-25 Wali Ullah Khan , Eva Lagunas , Asad Mahmood , Muhammad Asif , Manzoor Ahmed , Symeon Chatzinotas

Reconfigurable intelligent surfaces (RISs) are rapidly gaining prominence in the realm of fifth generation (5G)-Advanced, and predominantly, sixth generation (6G) mobile networks, offering a revolutionary approach to optimizing wireless…

Information Theory · Computer Science 2024-06-17 Ertugrul Basar , George C. Alexandropoulos , Yuanwei Liu , Qingqing Wu , Shi Jin , Chau Yuen , Octavia A. Dobre , Robert Schober
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