The paper analyzes the effectiveness of these methods in optimizing the system sum–SE via optimizing the passive beamforming in a RIS-aided mMIMO system under real-world passive RIS constraints. Key objectives include standardizing system models, validating the manifold-based approach and results, ...
serving single-antenna users at the same time. We assume that the direct channels are blocked. , the user and the base station can only communicate through the virtual channel established by RIS reflection. The channel from RIS to thek-th user ...
In this section, the coexistence performance in an RIS-aided environment is investigated based on the properties of the PU angular region, interference thresholds, and discrete RIS phase control. For simplification in the simulation framework, all elevation angles are set to zero, focusing on two-...
内容提示: Channel Estimation for RIS-Aided mmWave MIMOChannelsJiguang He † , Markus Leinonen † , Henk Wymeersch ? , Markku Juntti †† Centre for Wireless Communications, FI-90014, University of Oulu, Finland? Department of Electrical Engineering, Chalmers University of Technology, ...
1Two-Timescale Transmission Design forRIS-Aided Cell-Free Massive MIMO SystemsJianxin Dai, Jin Ge, Kangda Zhi, Cunhua Pan, Zaichen Zhang, Jiangzhou Wang,Fellow, IEEE, and Xiaohu You, Fellow, IEEEAbstractThis paper investigates the performance of a two-timescale transmission design for uplink re...
The prospects of using a Reconfigurable Intelligent Surface (RIS) to aid wireless communication systems have recently received much attention from academia and industry. Most papers make theoretical studies based on elementary models, while the prototyping of RIS-aided wireless communication and real-world...
Special Issue "Reconfigurable Intelligent Surfaces aided Physical Layer Security in 6G Wireless Networks" IET Communications (SCI-indexed, 影响因子:1.6,CCF C类期刊) 2023.08.01-11.01开放投稿,2024.07见刊 期刊网址:ietresearch.onlinelibrary.wiley.com 专刊具体信息如下:发布...
This survey considers both perspectives, synthesizing them into a unified framework termed physically-consistent EM models-aware RIS-aided communication. The term “Physically-Consistent EM Models-Aware RIS-Aided Communication” is used to describe the integration of physically-consistent EM models with ...
This paper studies RIS-aided cell-free massive MIMO systems, where multiple RISs are deployed to assist the communication between multiple access points (APs) and multiple users, with either continuous or discrete phase shifts at the RISs. We formulate the max-min fairness problem that maximizes ...
In this work, we investigate Reconfigurable Intelligent Surface (RIS)-aided Full-Duplex (FD)-Simultaneous Wireless Information Power Transfer (SWIPT)-Cooperative non-Orthogonal Multiple Access (C-NOMA) consisting of two paired devices. The device with better channel conditions (D1) is designated to ...