3 papers
eess.SP2024
Channel-Coded Precoding for Multi-User MISO Systems
Ly V. Nguyen, Junil Choi, Bjorn Ottersten +1
Precoding is a critical and long-standing technique in multi-user communication systems. However, the majority of existing precoding methods do not consider channel coding in their…
cs.IT2024
A Deep Reinforcement Learning Approach for Autonomous Reconfigurable Intelligent Surfaces
Hyuckjin Choi, Ly V. Nguyen, Junil Choi +1
A reconfigurable intelligent surface (RIS) is a prospective wireless technology that enhances wireless channel quality. An RIS is often equipped with passive array of elements and…
cs.IT2024
Joint Downlink and Uplink Optimization for RIS-Aided FDD MIMO Communication Systems
Gyoseung Lee, Hyeongtaek Lee, Donghwan Kim +3
This paper investigates reconfigurable intelligent surface (RIS)-aided frequency division duplexing (FDD) communication systems. Since the downlink and uplink signals are simultane…