1.2k citations · 2.2k across the 30 of their papers we have counts for
30 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…
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…
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…
Multi-user passive beamforming in RIS-aided communications and experimental validations
Zhibo Zhou, Haifan Yin, Li Tan +3
Reconfigurable intelligent surface (RIS) is a promising technology for future wireless communications due to its capability of optimizing the propagation environments. Nevertheless…
An EEP-based robust beamforming approach for superdirective antenna arrays and experimental validations
Mengying Gao, Haifan Yin, Liangcheng Han
A superdirective antenna array has the potential to achieve an array gain proportional to the square of the number of antennas, making it of great value for future wireless communi…
Prototyping and real-world field trials of RIS-aided wireless communications
Xilong Pei, Haifan Yin, Li Tan +2
Reconfigurable intelligent surface (RIS) is a promising technology that has the potential to change the way we interact with the wireless propagating environment. In this paper, we…
Low-complexity eigenvector prediction-based precoding matrix prediction in massive MIMO with mobility
Ziao Qin, Haifan Yin, Weidong Li
In practical massive multiple-input multiple-output (MIMO) systems, the precoding matrix is often obtained from the eigenvectors of channel matrices and is challenging to update in…
Channel sensing for holographic interference surfaces based on the principle of interferometry
Jindiao Huang, Yuyao Wu, Haifan Yin +2
The Holographic Interference Surface (HIS) provides a new paradigm for building a more cost-effective wireless communication architecture. In this paper, we derive the principles o…
Superdirectivity-enhanced wireless communications: A multi-user perspective
Liangcheng Han, Haifan Yin
Superdirective array may achieve an array gain proportional to the square of the number of antennas . In the early studies of superdirectivity, little research has been done f…
A genetic algorithm based superdirective beamforming method under excitation power range constraints
Jingcheng Xie, Haifan Yin, Liangcheng Han
The array gain of a superdirective antenna array can be proportional to the square of the number of antennas. However, the realization of the so-called superdirectivity entails acc…
RIS with insufficient phase shifting capability: Modeling, beamforming, and experimental validations
Lin Cao, Haifan Yin, Li Tan +1
Most research works on reconfigurable intelligent surfaces (RIS) rely on idealized models of the reflection coefficients, i.e., uniform reflection amplitude for any phase and suffi…
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…
RIS-aided Wireless Communications: Can RIS Beat Metal Plate?
Jiangfeng Hu, Haifan Yin, Li Tan +2
Reconfigurable Intelligent Surface (RIS) has recently been regarded as a paradigm-shifting technology beyond 5G, for its flexibility on smartly adjusting the response to the imping…
A review of codebooks for CSI feedback in 5G new radio and beyond
Ziao Qin, Haifan Yin
Codebooks have been indispensable for wireless communication standard since the first release of the Long-Term Evolution in 2009. They offer an efficient way to acquire the channel…
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…
A Multi-Dimensional Matrix Pencil-Based Channel Prediction Method for Massive MIMO with Mobility
Weidong Li, Haifan Yin, Ziao Qin +2
This paper addresses the mobility problem in massive multiple-input multiple-output systems, which leads to significant performance losses in the practical deployment of the fifth…
Coupling Matrix-based Beamforming for Superdirective Antenna Arrays
Liangcheng Han, Haifan Yin, Thomas L. Marzetta
In most multiple-input multiple-output (MIMO) communication systems, e.g., Massive MIMO, the antenna spacing is generally no less than half a wavelength. It helps to reduce the mut…
A 3D Positioning-based Channel Estimation Method for RIS-aided mmWave Communications
Yaoshen Cui, Haifan Yin, Li Tan +1
A fundamental challenge in millimeter-wave (mmWave) communication is the susceptibility to blocking objects. One way to alleviate this problem is the use of reconfigurable intellig…
A Partial Reciprocity-based Channel Prediction Framework for FDD Massive MIMO with High Mobility
Ziao Qin, Haifan Yin, Yandi Cao +2
Massive multiple-input multiple-output (MIMO) is believed to deliver unrepresented spectral efficiency gains for 5G and beyond. However, a practical challenge arises during its com…
A Partial Channel Reciprocity-based Codebook for Wideband FDD Massive MIMO
Haifan Yin, David Gesbert
The acquisition of channel state information (CSI) in Frequency Division Duplex (FDD) massive MIMO has been a formidable challenge. In this paper, we address this problem with a no…
A Received Power Model for Reconfigurable Intelligent Surface and Measurement-based Validations
Zipeng Wang, Li Tan, Haifan Yin +3
The idea of using a Reconfigurable Intelligent Surface (RIS) consisting of a large array of passive scattering elements to assist wireless communication systems has recently attrac…
MmWave MIMO Communication with Semi-Passive RIS: A Low-Complexity Channel Estimation Scheme
Jiangfeng Hu, Haifan Yin, Emil Björnson
Reconfigurable intelligent surfaces (RISs) have recently received widespread attention in the field of wireless communication. An RIS can be controlled to reflect incident waves fr…
RIS-Aided Wireless Communications: Prototyping, Adaptive Beamforming, and Indoor/Outdoor Field Trials
Xilong Pei, Haifan Yin, Li Tan +5
The prospects of using a Reconfigurable Intelligent Surface (RIS) to aid wireless communication systems have recently received much attention from academia and industry. Most paper…