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Channel Estimation for Reconfigurable Intelligent Surface-Assisted Cell-Free Communications
Recent research has focused on reconfigurable intelligent surface (RIS)-assisted cell-free systems with the goal of enhancing coverage and lowering the cost of cell-free networks.
Fast Compressive Channel Estimation for MmWave MIMO Hybrid Beamforming Systems
Given the high degree of computational complexity of the channel estimation technique based on the conventional one-dimensional (1-D) compressive sensing (CS) framework employed in the hybrid beamforming architecture, this study proposes two low-complexity channel estimation strategies.
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