A single-antenna system localizes and tracks multiple moving RIS-equipped users by combining time-of-arrival, Doppler, and reflection-geometry measurements, beating a ToA-based baseline by up to 3x in simulation.
Semi-passive 3D positioning of multiple RIS-enabled users,
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Single Antenna Tracking and Localization of RIS-enabled Vehicular Users
A single-antenna system localizes and tracks multiple moving RIS-equipped users by combining time-of-arrival, Doppler, and reflection-geometry measurements, beating a ToA-based baseline by up to 3x in simulation.