6 papers
Rotation-Invariant Spherical Watermarking via Third-Order SO(3) Representation Coupling
Pengzhen Chen, Yanwei Liu, Xiaoyan Gu +3
Reliable watermarking of panoramic imagery is fundamentally challenged by arbitrary 3D rotations. As panoramas are defined on the sphere, they naturally transform under the action…
A spatial filter for mitigating radio interference and its application to CHIME/FRB Outriggers
Shion Andrew, Juan Mena-Parra, Haochen Wang +16
The sensitivity of radio telescopes is becoming increasingly limited by the presence of radio frequency interference (RFI), which will worsen as the radio spectrum becomes more cro…
The micro-Doppler Attack Against AI-based Human Activity Classification from Wireless Signals
Margarita Loupa, Antonios Argyriou, Yanwei Liu
A subset of Human Activity Classification (HAC) systems are based on AI algorithms that use passively collected wireless signals. This paper presents the micro-Doppler attack targe…
RFI and Jamming Detection in Antenna Arrays with an LSTM Autoencoder
Christos Ntemkas, Antonios Argyriou
Radio frequency interference (RFI) and malicious jammers are a significant problem in our wireless world. Detecting RFI or jamming is typically performed with model-based statistic…
Cross-Layer-Optimized Link Selection for Hologram Video Streaming over Millimeter Wave Networks
Yiming Jiang, Yanwei Liu, Jinxia Liu +3
Holographic-type communication brings an immersive tele-holography experience by delivering holographic contents to users. As the direct representation of holographic contents, hol…
Power-Efficient Deceptive Wireless Beamforming Against Eavesdroppers
Georgios Chrysanidis, Antonios Argyriou, Le-Nam Tran +2
Eavesdroppers of wireless signals want to infer as much as possible regarding the transmitter (Tx). Popular methods to minimize information leakage to the eavesdropper include cove…