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Reconfigurable intelligent surface (RIS) has been deemed as one of potential components of future wireless communication systems because it can adaptively manipulate the wireless propagation environment with low-cost passive devices.…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Yanan Ma , Ming Li , Yang Liu , Qingqing Wu , Qian Liu

Reconfigurable intelligent surface (RIS) has emerged as a cost-effective and energy-efficient technique for 6G. By adjusting the phase shifts of passive reflecting elements, RIS is capable of suppressing the interference and combining the…

Information Theory · Computer Science 2023-04-26 Jinglian He , Yijie Mao , Yong Zhou , Ting Wang , Yuanming Shi

Reconfigurable intelligent surface (RIS) as an emerging cost-effective technology can enhance the spectrum- and energy-efficiency of wireless networks. In this paper, we consider an RIS-aided green edge inference system, where the inference…

Signal Processing · Electrical Eng. & Systems 2024-10-30 Sheng Hua , Yong Zhou , Kai Yang , Yuanming Shi

Reconfigurable intelligent surfaces (RISs) have been considered as a promising technology for the sixth-generation (6G) wireless networks that can control wireless channels in a desirable way and significantly enhance the network…

Networking and Internet Architecture · Computer Science 2022-12-05 Waqas Khalid , Zeeshan Kaleem , Rehmat Ullah , Trinh Van Chien , Song Noh , Heejung Yu

Recently, a novel structures of reconfigurable intelligent surface (RIS) integrating both passive and active elements, termed reconfigurable intelligent sensing surface (RISS), efficiently addresses challenges in RIS channel estimation and…

Signal Processing · Electrical Eng. & Systems 2025-03-12 Cheng Luo , Jie Hu , Luping Xiang , Kun Yang

One of the key enablers of future wireless communications is constituted by massive multiple-input multiple-output (MIMO) systems, which can improve the spectral efficiency by orders of magnitude. However, in existing massive MIMO systems,…

Information Theory · Computer Science 2019-12-10 Linglong Dai , Bichai Wang , Min Wang , Xue Yang , Jingbo Tan , Shuangkaisheng Bi , Shenheng Xu , Fan Yang , Zhi Chen , Marco Di Renzo , Lajos Hanzo

Intelligent reflecting surface (IRS) has emerged as a promising technique for wireless communication networks. By dynamically tuning the reflection amplitudes/phase shifts of a large number of passive elements, IRS enables flexible wireless…

Information Theory · Computer Science 2022-04-26 Weidong Mei , Beixiong Zheng , Changsheng You , Rui Zhang

Reconfigurable intelligent surface (RIS)-empowered communication is one of the promising physical layer enabling technologies for the sixth generation (6G) wireless networks due to their unprecedented capabilities in shaping the wireless…

Signal Processing · Electrical Eng. & Systems 2025-11-17 Aymen Khaleel , Recep Vural , Mehmet Cagri Ilter , Majid Gerami , Ertugrul Basar

Reconfigurable intelligent surface (RIS), a recently introduced technology for future wireless com-munication systems, enhances the spectral and energy efficiency by intelligently adjusting the propaga-tion conditions between a base station…

Signal Processing · Electrical Eng. & Systems 2022-03-08 Huimei Han , Jun Zhao , Zehui Xiong , Dusit Niyato , Wenchao Zhai , Marco Di Renzo , Quoc-Viet Pham , Weidang Lu

Transmission through reconfigurable intelligent surfaces (RISs), which control the reflection/scattering characteristics of incident waves in a deliberate manner to enhance the signal quality at the receiver, appears as a promising…

Information Theory · Computer Science 2020-01-30 Ertugrul Basar

Reconfigurable Intelligent Surfaces (RISs) are envisioned to play a key role in future wireless communications, enabling programmable radio propagation environments. They are usually considered as almost passive planar structures that…

Information Theory · Computer Science 2022-08-12 Haiyang Zhang , Nir Shlezinger , George C Alexandropoulos , Idban Alamzadeh , Mohammadreza F Imani , Yonina C Eldar

Reconfigurable intelligent surfaces (RIS) are conventionally implemented as two-dimensional (2D) electromagnetic (EM) structures to steer incident waves toward desired reflection angles. This approach limits the reflection to a single…

Systems and Control · Electrical Eng. & Systems 2026-02-16 Ruiqi Wang , Yiming Yang , Atif Shamim

The search for physical-layer technologies that can play a key role in beyond-5G systems has started. One option is reconfigurable intelligent surfaces (RIS), which can collect wireless signals from a transmitter and passively beamform them…

Information Theory · Computer Science 2021-01-05 Emil Björnson , Özgecan Özdogan , Erik G. Larsson

Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal prorogation in wireless networks. By smartly tuning the signal reflection via a large number of low-cost passive reflecting elements, IRS is capable…

Information Theory · Computer Science 2020-07-08 Qingqing Wu , Shuowen Zhang , Beixiong Zheng , Changsheng You , Rui Zhang

With the development of the next generation of mobile networks, new research challenges have emerged, and new technologies have been proposed to face them. On the one hand, the reconfigurable intelligent surface (RIS) technology is being…

Signal Processing · Electrical Eng. & Systems 2021-05-26 Romain Fara , Philippe Ratajczak , Dinh-Thuy Phan Huy , Abdelwaheb Ourir , Marco Di Renzo , Julien De Rosny

Reconfigurable intelligent surfaces (RISs) are an emerging technology for enhancing the performance of wireless networks at a low and affordable cost, complexity, and power consumption. We introduce an algorithm for optimizing a…

Information Theory · Computer Science 2020-12-01 Xuewen Qian , Marco Di Renzo

Reconfigurable intelligent surface (RIS) can improve the communications between a source and a destination. Recently, continuous aperture RIS is proved to have better communication performance than discrete aperture RIS and has received…

Signal Processing · Electrical Eng. & Systems 2022-10-04 Yuhua Jiang , Feifei Gao , Mengnan Jian , Shun Zhang , Wei Zhang

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…

Intelligent reflecting surface (IRS) is envisioned as a promising solution for controlling radio propagation environments in future wireless systems. In this paper, we propose a distributed intelligent reflecting surface (IRS) assisted…

Signal Processing · Electrical Eng. & Systems 2020-11-02 Yashuai Cao , Tiejun Lv , Wei Ni

Reconfigurable intelligent surface (RIS) is a promising reflective radio technology for improving the coverage and rate of future wireless systems by reconfiguring the wireless propagation environment. The current work mainly focuses on the…

Networking and Internet Architecture · Computer Science 2021-03-24 Xuelin Cao , Bo Yang , Hongliang Zhang , Chongwen Huang , Chau Yuen , Zhu Han