Results 61 to 70 of about 1,169 (175)

Cascaded channel decoupling based solution for RIS regulation matrix

Intelligent and Converged Networks
This article presents a pioneering solution to address the challenges of reconfigurable intelligent surface (RIS), employing a cascaded channel decoupling strategy.
Yajun Zhao
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STAR-RIS-Assisted Millimeter-Wave Secure Communication with Multiple Eavesdroppers

Mathematics
Aiming to address the limited coverage of conventional reconfigurable intelligent surfaces (RISs), this study proposes a millimeter-wave secure communication scheme based on the simultaneously transmitting and reflecting reconfigurable intelligent ...
Binghui Qian, Jingping Qiao, Chuanting Zhang   +2 more
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Robust and secure communications using dynamic rotations reconfigurable intelligent surface

ICT Express
This paper investigates the secure transmission problem using a dynamically reconfigurable intelligent surface (RIS). Considering an eavesdropping scenario where a multi-antenna eavesdropper has inadequate channel state information, a resilient ...
Kunyu Li, Guoping Zhang, Hongbo Xu, Ruijie Li, Yun Chen, Xingxing Huang   +5 more
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STAR-RIS-assisted key generation method in quasi-static environment

EURASIP Journal on Wireless Communications and Networking
In this paper, we introduce a new method to solve the low-entropy problem in a quasi-static environment. We utilize a simultaneous transmission and reflection reconfigurable intelligent surface (STAR-RIS) that transmits and reflects incoming signals to ...
Yang Ma, Liquan Chen, Tianyu Lu, Yufan Song, Kailin Cao   +4 more
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A Survey of Multiple Reconfigurable Intelligent Surface Aided Systems

IEEE Access
Reconfigurable intelligent surface (RIS) can establish reflection links between base stations and users, providing high passive beamforming gain that significantly enhances the system’s achievable rate. Given the outstanding performance of RIS, we
Renjie Liang, Junjie Liang
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Reconfigurable Intelligent Surface System Level Simulations for Industry Standards

IEEE Communications Magazine
Reconfigurable intelligent surface (RIS) is an emerging technology for wireless communications. In this paper, extensive system level simulations are conducted for analyzing the performance of multi-RIS and multi-base-station (BS) scenarios, by considering typical settings for industry standards.
Yifei Yuan 0003, Yuhong Huang, Xin Su 0010, Boyang Duan, Nan Hu, Marco Di Renzo   +5 more
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Power Allocation and RIS Elements Optimisation for Reconfigurable Intelligent Surfaces assisted RSMA

2025 5th International Conference on Electrical, Computer and Energy Technologies (ICECET)
This paper proposes power allocation and the number of reconfigurable intelligent surfaces (RIS) elements optimisation in a RIS-assisted rate splitting multiple access (RSMA) system. The optimised RIS-RSMA (ORIS-RSMA) method determines the optimal number of RIS elements and the power allocation factors for both common and private parts of a message ...
Abdullah Qayyum, Maziar M. Nekovee
openaire   +2 more sources

Proposed Multiple Reconfigurable Intelligent Surfaces to Mitigate the Inter-User-Interference Problem in NLOS

Journal of Communications Software and Systems
Reconfigurable Intelligent Surfaces (RIS) are gaining significant global interest as a potential technology that could enable 6G. An efficient method employs passive element reflectors to extend coverage of the non-line of sight (NLOS) millimeter-wave ...
Bushra Jarjees Qeryaqos, Saad Ahmed Ayoob   +1 more
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Reconfigurable Intelligent Surface (RIS)-Assisted Entanglement Distribution in FSO Quantum Networks

IEEE Transactions on Wireless Communications
Quantum networks (QNs) relying on free-space optical (FSO) quantum channels can support quantum applications in environments wherein establishing an optical fiber infrastructure is challenging and costly. However, FSO-based QNs require a clear line-of-sight (LoS) between users, which is challenging due to blockages and natural obstacles. In this paper,
Mahdi Chehimi, Mohamed Elhattab, Walid Saad 0001, Gayane Vardoyan, Nitish K. Panigrahy, Chadi Assi, Don Towsley   +6 more
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Systems resource allocation algorithm for RIS-assisted D2D secure communication based on parallel CNN

Tongxin xuebao, 2022
To meet the requirements of intelligent signal processing and physical layer security, aiming at the shortage of spectrum resources, a resource allocation algorithm for reconfigurable intelligent surface (RIS)-assisted the device to device (D2D ...
Zhengyu ZHU, Gengwang HOU, Chongwen HUANG, Gangcan SUN, Wanming HAO, Jing LIANG   +5 more
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