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eess.SP2024
Near-Field LoS/NLoS Channel Estimation for RIS-Aided MU-MIMO Systems: Piece-Wise Low-Rank Approximation Approach
Jeongjae Lee, Songnam Hong
We study the channel estimation problem for a reconfigurable intelligent surface (RIS)-assisted millimeter-wave (mmWave) multi-user multiple-input multiple-output (MU-MIMO) system.…
eess.SP2024
Asymptotically Near-Optimal Hybrid Beamforming for mmWave IRS-Aided MIMO Systems
Jeongjae Lee, Songnam Hong
Hybrid beamforming is an emerging technology for massive multiple-input multiple-output (MIMO) systems due to the advantages of lower complexity, cost, and power consumption. Recen…
eess.SP2024
Near-Field Channel Estimation for XL-RIS Assisted Multi-User XL-MIMO Systems: Hybrid Beamforming Architectures
Jeongjae Lee, Hyeongjin Chung, Yunseong Cho +2
Channel estimation is one of the key challenges for the deployment of extremely large-scale reconfigurable intelligent surface (XL-RIS) assisted multiple-input multiple-output (MIM…