9 papers
Goal-Oriented Semantic Communication for Distributed ISAC-Enabled Vehicle Coordination
Wenjie Liu, Yansha Deng
Vehicle coordination at unsignalized intersections relies on accurate real-time vehicle state acquisition and reliable command-and-control (C&C) signal delivery. However, existing…
Safety-aware Goal-oriented Semantic Sensing, Communication, and Control for Robotics
Wenchao Wu, Shutong Chen, Wenjie Liu +3
Wirelessly-connected robotic systems empower robots with real-time intelligence by leveraging remote computing resources for decision-making. However, the data exchange between rob…
Goal-Oriented Semantic Communication for ISAC-Enabled Robotic Obstacle Avoidance
Wenjie Liu, Yansha Deng, Henk Wymeersch
We investigate an integrated sensing and communication (ISAC)-enabled BS for the unmanned aerial vehicle (UAV) obstacle avoidance task, and propose a goal-oriented semantic communi…
Coordinated Position Falsification Attacks and Countermeasures for Location-Based Services
Wenjie Liu, Panos Papadimitratos
With the rise of location-based service (LBS) applications that rely on terrestrial and satellite infrastructures (e.g., GNSS and crowd-sourced Wi-Fi, Bluetooth, cellular, and IP d…
GNSS Spoofing Detection Based on Opportunistic Position Information
Wenjie Liu, Panos Papadimitratos
The limited or no protection for civilian Global Navigation Satellite System (GNSS) signals makes spoofing attacks relatively easy. With modern mobile devices often featuring netwo…
Guardian Positioning System (GPS) for Location Based Services
Wenjie Liu, Panos Papadimitratos
Location-based service (LBS) applications proliferate and support transportation, entertainment, and more. Modern mobile platforms, with smartphones being a prominent example, rely…
Self-Supervised Federated GNSS Spoofing Detection with Opportunistic Data
Wenjie Liu, Panos Papadimitratos
Global navigation satellite systems (GNSS) are vulnerable to spoofing attacks, with adversarial signals manipulating the location or time information of receivers, potentially caus…
Position-based Rogue Access Point Detection
Wenjie Liu, Panos Papadimitratos
Rogue Wi-Fi access point (AP) attacks can lead to data breaches and unauthorized access. Existing rogue AP detection methods and tools often rely on channel state information (CSI)…
Extending RAIM with a Gaussian Mixture of Opportunistic Information
Wenjie Liu, Panos Papadimitratos
GNSS are indispensable for various applications, but they are vulnerable to spoofing attacks. The original receiver autonomous integrity monitoring (RAIM) was not designed for secu…