3 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…
eess.SP2023
Channel Reciprocity Attacks Using Intelligent Surfaces with Non-Diagonal Phase Shifts
Haoyu Wang, Zhu Han, A. Lee Swindlehurst
While reconfigurable intelligent surface (RIS) technology has been shown to provide numerous benefits to wireless systems, in the hands of an adversary such technology can also be…