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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…
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…
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…
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…
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…
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…