5 papers · 1 filter
Three-Dimensional Radio Localization: A Channel Charting-Based Approach
Phillip Stephan, Florian Euchner, Stephan ten Brink
Channel charting creates a low-dimensional representation of the radio environment in a self-supervised manner using manifold learning. Preserving relative spatial distances in the…
CSI Obfuscation: Single-Antenna Transmitters Can Not Hide from Adversarial Multi-Antenna Radio Localization Systems
Phillip Stephan, Florian Euchner, Stephan ten Brink
The ability of modern telecommunication systems to locate users and objects in the radio environment raises justified privacy concerns. To prevent unauthorized localization, single…
Passive Channel Charting: Locating Passive Targets using Wi-Fi Channel State Information
Florian Euchner, David Kellner, Phillip Stephan +1
We propose passive channel charting, an extension of channel charting to passive target localization. As in conventional channel charting, we follow a dimensionality reduction appr…
Uncertainty-Aware Dimensionality Reduction for Channel Charting with Geodesic Loss
Florian Euchner, Phillip Stephan, Stephan ten Brink
Channel Charting is a dimensionality reduction technique that learns to reconstruct a low-dimensional, physically interpretable map of the radio environment by taking advantage of…
Channel Charting-Based Channel Prediction on Real-World Distributed Massive MIMO CSI
Phillip Stephan, Florian Euchner, Stephan ten Brink
Distributed massive MIMO is considered a key advancement for improving the performance of next-generation wireless telecommunication systems. However, its efficacy in scenarios inv…