28 citations · 62 across the 8 of their papers we have counts for
3 papers · 1 filter
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…