24 citations · 33 across the 4 of their papers we have counts for
4 papers
Defensive Reconfigurable Intelligent Surface (D-RIS) Based on Non-Reciprocal Channel Links
Kun Chen-Hu, Petar Popovski
A reconfigurable intelligent surface (RIS) is commonly made of low-cost passive and reflective meta-materials with excellent beam steering capabilities. It is applied to enhance wi…
Hybrid Message Passing-Based Detectors for Uplink Grant-Free NOMA Systems
Yi Song, Yiwen Zhu, Kun Chen-Hu +3
This paper studies improving the detector performance which considers the activity state (AS) temporal correlation of the user equipments (UEs) in the time domain under the uplink…
Differential Data-Aided Beam Training for RIS-Empowered Multi-Antenna Communications
Kun Chen-Hu, George C. Alexandropoulos, Ana García Armada
The Reconfigurable Intelligent Surface (RIS) constitutes one of the prominent technologies for the next generation of wireless communications. It is envisioned to enhance the signa…
Non-Coherent MIMO-OFDM Uplink empowered by the Spatial Diversity in Reflecting Surfaces
Kun Chen-Hu, George C. Alexandropoulos, Ana García Armada
Reflecting Surfaces (RSs) are being lately envisioned as an energy efficient solution capable of enhancing the signal coverage in cases where obstacles block the direct communicati…