6 papers · 1 filter
Metasurface-Enabled Superheterodyne Transmitter With Decoupled Harmonic-Free Signal Generation and Precoding
Xuehui Dong, Miyu Feng, Chen Shao +6
The evolution of programmable metasurfaces (PM) from passive beamforming to active information transmission marks a paradigm shift for next-generation wireless systems. However, th…
Flexible Multi-Beam Synthesis and Directional Suppression Through Transmissive RIS
Rujing Xiong, Ke Yin, Jialong Lu +3
Despite extensive research on reconfigurable intelligent surfaces (RISs) in recent years, existing beamforming methods still face significant challenges in achieving flexible and r…
Optimal Configuration of Reconfigurable Intelligent Surfaces With Non-uniform Phase Quantization
Jialong Lu, Rujing Xiong, Tiebin Mi +2
The existing methods for reconfigurable intelligent surface (RIS) beamforming in wireless communications are typically limited to uniform phase quantization. However, in practical…
Codebook Configuration for RIS-aided Systems via Implicit Neural Representations
Huiying Yang, Rujing Xiong, Yao Xiao +4
Reconfigurable Intelligent Surface (RIS) is envisioned to be an enabling technique in 6G wireless communications. By configuring the reflection beamforming codebook, RIS focuses si…
Design and Optimization on Successive RIS-assisted Multi-hop Wireless Communications
Rujing Xiong, Jialong Lu, Jianan Zhang +4
As an emerging wireless communication technology, reconfigurable intelligent surface (RIS) has become a basic choice for providing signal coverage services in scenarios with dense…
Optimal Beamforming of RIS-Aided Wireless Communications: An Alternating Inner Product Maximization Approach
Rujing Xiong, Tiebin Mi, Jialong Lu +4
This paper investigates a general discrete -norm maximization problem, with the power enhancement at steering directions through reconfigurable intelligent surfaces (RISs)…