28 citations · 62 across the 8 of their papers we have counts for
9 papers
Two-Stage Channel Estimation for Hybrid RIS Assisted MIMO Systems
Rafaela Schroeder, Jiguang He, Glauber Brante +1
Reconfigurable intelligent surfaces (RISs) have been proposed as a key enabler to improve the coverage of the signals and mitigate the frequent blockages in millimeter wave (mmWave…
Channel Estimation for Hybrid RIS Aided MIMO Communications via Atomic Norm Minimization
Rafaela Schroeder, Jiguang He, Markku Juntti
Reconfigurable intelligent surfaces (RISs) have been introduced as a remedy for mitigating frequent blockages in millimeter wave (mmWave) multiple-input multiple-output (MIMO) comm…
Channel Estimation and Hybrid Architectures for RIS-Assisted Communications
Jiguang He, Nhan Thanh Nguyen, Rafaela Schroeder +3
Reconfigurable intelligent surfaces (RISs) are considered as potential technologies for the upcoming sixth-generation (6G) wireless communication system. Various benefits brought b…
Hybrid Relay-Reflecting Intelligent Surface-Aided Wireless Communications: Opportunities, Challenges, and Future Perspectives
Nhan Thanh Nguyen, Jiguang He, Van-Dinh Nguyen +5
Reconfigurable intelligent surfaces (RISs) have emerged as a cost- and energy-efficient technology that can customize and program the physical propagation environment by reflecting…
Passive RIS vs.Hybrid RIS: A Comparative Study on Channel Estimation
Rafaela Schroeder, Jiguang He, Markku Juntti
The reconfigurable intelligent surface (RIS) plays an important role in maintaining the connectivity in millimeter wave (mmWave) MIMO systems when the direct channel between the tr…
Decision Triggered Data Transmission and Collection in Industrial Internet of Things
Jiguang He, Long Kong, Tero Frondelius +2
We propose a decision triggered data transmission and collection (DTDTC) protocol for condition monitoring and anomaly detection in the industrial Internet of things (IIoT). In the…
Channel Estimation for RIS-Aided mmWave MIMO Channels
Jiguang He, Markus Leinonen, Henk Wymeersch +1
A reconfigurable intelligent surface (RIS) can shape the radio propagation by passively changing the directions of impinging electromagnetic waves. The optimal control of the RIS r…
Adaptive Beamforming Design for mmWave RIS-Aided Joint Localization and Communication
Jiguang He, Henk Wymeersch, Tachporn Sanguanpuak +2
The concept of reconfigurable intelligent surface (RIS) has been proposed to change the propagation of electromagnetic waves, e.g., reflection, diffraction, and refraction. To acco…
Large Intelligent Surface for Positioning in Millimeter Wave MIMO Systems
Jiguang He, Henk Wymeersch, Long Kong +2
Millimeter-wave (mmWave) multiple-input multiple-output (MIMO) system for the fifth generation (5G) cellular communications can also enable single-anchor positioning and object tra…