A group-wise narrow beam design with EDA-optimized antenna grouping and a low-complexity VBI algorithm estimates uplink channels in PC-HBF systems using a single pilot.
Performance evaluation of the SRS based MIMO channel estimation on 5G NR open source channel model,
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A Group-Wise Narrow Beam Design for Uplink Channel Estimation in Hybrid Beamforming Systems
A group-wise narrow beam design with EDA-optimized antenna grouping and a low-complexity VBI algorithm estimates uplink channels in PC-HBF systems using a single pilot.