3 papers
eess.SP2025
A Heuristic-Integrated DRL Approach for Phase Optimization in Large-Scale RISs
Wei Wang, Peizheng Li, Angela Doufexi +1
Optimizing discrete phase shifts in large-scale reconfigurable intelligent surfaces (RISs) is challenging due to their non-convex and non-linear nature. In this letter, we propose…
eess.SP2023
Integer-Based Pattern Synthesis for Asymmetric Multi-Reflection RIS
Wei Wang, Angela Doufexi, Mark A Beach
This study delves into the radiation pattern synthesis of reconfigurable intelligent surfaces (RIS) / reflection metasurfaces. Through superimposing multiple single-reflection prof…
eess.SP2023
A DRL-based Reflection Enhancement Method for RIS-assisted Multi-receiver Communications
Wei Wang, Peizheng Li, Angela Doufexi +1
In reconfigurable intelligent surface (RIS)-assisted wireless communication systems, the pointing accuracy and intensity of reflections depend crucially on the 'profile,' represent…