Radar-Assisted Predictive Beamforming for Vehicle-to-Infrastructure Links
Fan Liu, Weijie Yuan, Christos Masouros, Jinhong Yuan
Abstract
In this paper, we propose a radar-assisted predictive beamforming design for vehicle-to-infrastructure (V2I) communication by relying on the joint sensing and communication functionalities at road side units (RSUs). We present a novel extended Kalman filtering (EKF) framework to track and predict kinematic parameters of the vehicle. By exploiting the radar functionality of the RSU we show that the communication beam tracking overheads can be drastically reduced. Numerical results have demonstrated that the proposed radar-assisted approach significantly outperforms the communication-only feedback based technique in both the angle tracking and the downlink communication.
Topics & Concepts
BeamformingComputer scienceTelecommunications linkKalman filterRadarReal-time computingExtended Kalman filterRadar trackerKinematicsRadar engineering detailsComputer networkRadar imagingTelecommunicationsArtificial intelligenceClassical mechanicsPhysicsMillimeter-Wave Propagation and ModelingIndoor and Outdoor Localization TechnologiesVehicular Ad Hoc Networks (VANETs)