2 papers
eess.SP2025
Nonreciprocal RIS-Aided Covert Channel Reciprocity Attacks and Countermeasures
Haoyu Wang, Jiawei Hu, Jiaqi Xu +2
Reconfigurable intelligent surface (RIS) technology enhances wireless communication performance, but it also introduces new vulnerabilities that can be exploited by adversaries. Th…
eess.SP2024
Non-Reciprocal Reconfigurable Intelligent Surfaces
Jiaqi Xu, Haoyu Wang, Rang Liu +2
In contrast to conventional RIS, the scattering matrix of a non-reciprocal RIS (NR-RIS) is non-symmetric, leading to differences in the uplink and the downlink components of NR-RIS…