9 papers
Precoding Matrix Indicator in the 5G NR Protocol: A Tutorial on 3GPP Beamforming Codebooks
Boyu Ning, Haifan Yin, Sixu Liu +8
This paper bridges this critical gap by providing a systematic examination of the beamforming codebook technology, i.e., precoding matrix indicator (PMI), in the 5G NR from theoret…
A Superdirective Beamforming Approach with Impedance Coupling and Field Coupling for Compact Antenna Arrays
Liangcheng Han, Haifan Yin, Mengying Gao +1
In most multiple-input multiple-output (MIMO) communication systems, antennas are spaced at least half a wavelength apart to reduce mutual coupling. In this configuration, the maxi…
Partial reciprocity-based precoding matrix prediction in FDD massive MIMO with mobility
Ziao Qin, Haifan Yin
The timely precoding of frequency division duplex (FDD) massive multiple-input multiple-output (MIMO) systems is a substantial challenge in practice, especially in mobile environme…
A Superdirective Beamforming Approach based on MultiTransUNet-GAN
Yali Zhang, Haifan Yin, Liangcheng Han
In traditional multiple-input multiple-output (MIMO) communication systems, the antenna spacing is often no smaller than half a wavelength. However, by exploiting the coupling betw…
A manifold learning-based CSI feedback framework for FDD massive MIMO
Yandi Cao, Haifan Yin, Ziao Qin +3
Massive multi-input multi-output (MIMO) in Frequency Division Duplex (FDD) mode suffers from heavy feedback overhead for Channel State Information (CSI). In this paper, a novel man…
Wavefront Transformation-based Near-field Channel Prediction for Extremely Large Antenna Array with Mobility
Weidong Li, Haifan Yin, Ziao Qin +1
This paper addresses the mobility problem in extremely large antenna array (ELAA) communication systems. In order to account for the performance loss caused by the spherical wavefr…