An HMM-based method that fits a signal-propagation model and decodes vehicle positions on a road graph from raw 5G RSS measurements achieves about 12-15 m trajectory error on two city datasets.
Calibration-free indoor positioning via regional channel tracing,
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Trajectory Map-Matching in Urban Road Networks Based on RSS Measurements
An HMM-based method that fits a signal-propagation model and decodes vehicle positions on a road graph from raw 5G RSS measurements achieves about 12-15 m trajectory error on two city datasets.