Velocity-Based Channel Charting with Spatial Distribution Map Matching

Stahlke M, George Y, Feigl T, Eskofier B, Mutschler C (2024)

Publication Type: Journal article

Publication year: 2024

Journal

IEEE Journal of Indoor and Seamless Positioning and Navigation Institute of Electrical and Electronics Engineers

Pages Range: 1-10

DOI: 10.1109/JISPIN.2024.3424768

Open Access Link: https://ieeexplore.ieee.org/abstract/document/10591331

Abstract

Radio Fingerprinting (FP) technologies improve localization performance in challenging Non-Line-of- Sight (NLoS) environments. However, FP is expensive as its life cycle management requires recording reference signals for initial training and when the environment changes. Instead, novel channel charting technologies are significantly cheaper. Because they implicitly assign relative coordinates to radio signals, they require few reference coordinates for localization. However, even channel charting still requires data acquisition and reference signals, and its localization is slightly less accurate than FP. We propose a novel channel charting framework that does not require references and dramatically reduces life-cycle management. With velocity information, e.g., Pedestrian Dead Reckoning (PDR) or odometry, we model relative charts. And with topological map information, e.g., building floor plans, we transform them into real coordinates. In a large-scale study, we acquired two realistic datasets using 5G and Single-Input and Multiple-Output (SIMO) distributed radio systems with noisy velocities and coarse map information. Our experiments show that we achieve the localization accuracy of FP but without reference information.

Authors with CRIS profile

Tobias Feigl
Björn Eskofier Machine Learning and Data Analytics Lab

Involved external institutions

Fraunhofer-Institut für Integrierte Schaltungen (IIS) DE Germany (DE) Fraunhofer-Institut für Integrierte Systeme und Bauelementetechnologie (IISB) DE Germany (DE)

How to cite

APA:

Stahlke, M., George, Y., Feigl, T., Eskofier, B., & Mutschler, C. (2024). Velocity-Based Channel Charting with Spatial Distribution Map Matching. IEEE Journal of Indoor and Seamless Positioning and Navigation, 1-10. https://doi.org/10.1109/JISPIN.2024.3424768

MLA:

Stahlke, Maximilian, et al. "Velocity-Based Channel Charting with Spatial Distribution Map Matching." IEEE Journal of Indoor and Seamless Positioning and Navigation (2024): 1-10.

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