6 papers
Beam Training for RIS-Aided ISAC Systems
Jinho Yang, Hyeongtaek Lee, Junil Choi
As a key technology for 6G, integrated sensing and communication (ISAC) is receiving considerable attention, and deploying a reconfigurable intelligent surface (RIS) can enhance bo…
Downlink Channel Estimation for mmWave Systems with Impulsive Interference
Kwonyeol Park, Gyoseung Lee, Hyeongtaek Lee +2
In this paper, we investigate a channel estimation problem in a downlink millimeter-wave (mmWave) multiple-input multiple-output (MIMO) system, which suffers from impulsive interfe…
Task-Based Quantization for Channel Estimation in RIS Empowered MmWave Systems
Gyoseung Lee, In-soo Kim, Yonina C. Eldar +4
In this paper, we investigate channel estimation for reconfigurable intelligent surface (RIS) empowered millimeter-wave (mmWave) multi-user single-input multiple-output communicati…
Robust Transmission Design for Active RIS-Aided Systems
Jinho Yang, Hyeongtaek Lee, Junil Choi
Different from conventional passive reconfigurable intelligent surfaces (RISs), incident signals and thermal noise can be amplified at active RISs. By exploiting the amplifying cap…
An Experimental Multi-Band Channel Characterization in the Upper Mid-Band
Roberto Bomfin, Ahmad Bazzi, Hao Guo +5
The following paper provides a multi-band channel measurement analysis on the frequency range (FR)3. This study focuses on the FR3 low frequencies 6.5 GHz and 8.75 GHz with a setup…
RIS-Enabled Cellular Systems Operated by Different Service Providers
Hyeongtaek Lee, Junil Choi
In realistic cellular communication systems, multiple service providers will operate within different frequency ranges. Each serving cell, which is managed by a distinct service pr…