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cs.IT2025
Coded Beam Training for RIS Assisted Wireless Communications
Yuhao Chen, Linglong Dai
Reconfigurable intelligent surface (RIS) is considered as one of the key technologies for future 6G communications. To fully unleash the performance of RIS, accurate channel state…
cs.IT2024
Near-Field Wideband Beamforming for RIS Based on Fresnel Zone
Qiumo Yu, Linglong Dai
Reconfigurable intelligent surface (RIS) has emerged as a promising solution to overcome the challenges of high path loss and easy signal blockage in millimeter-wave (mmWave) and t…
cs.IT2024
Near-Field Wideband Beam Training Based on Distance-Dependent Beam Split
Tianyue Zheng, Mingyao Cui, Zidong Wu +1
Near-field beam training is essential for acquiring channel state information in 6G extremely large-scale multiple input multiple output (XL-MIMO) systems. To achieve low-overhead…