A Millimeter Wave Beam Tracking in Vehicular Scenario via Particle Filter

Mobility tracking has been highlighted as one of the key issues in millimeter wave communication. Although several beam tracking algorithms have been proposed to improve mobility tracking, these algorithms suffer high complexity. In this paper, we propose a low complexity beam tracking protocol via particle filter. In the proposed algorithm, a single beam pair is trained to track a path by exploiting the location information of the mobile station. We investigate several effects on the performance of the proposed tracking algorithm, such as the signal-to-noise ratio (SNR) and the array size of the base station antennas. It is observed that as the signal-to-noise ratio and the array size increases, the beam tracking performance improves.