IEICE Communications Express
Online ISSN : 2187-0136
ISSN-L : 2187-0136
Accurate Beam Tracking Scheme for V2N Transmission Using Vehicle Logs
Ryo KatoMamoru OkumuraEiji Okamoto
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JOURNAL FREE ACCESS Advance online publication

Article ID: 2022XBL0007

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Abstract

In 5G vehicular communications, beamforming technologies for vehicles, which compensate for large propagation losses at high carrier frequencies, are being considered. However, because the deflected beamforming loss degrades the communication quality, an accurate beam tracking system that follows the movement of the vehicle is required. In conventional schemes using a periodic codebook, the main lobe often deviates from the direction of the base station owing to fast movement. Therefore, in this study, a scheme for adaptively generating beam candidates using beam selection logs and the steering angle of the vehicle is proposed. Numerical results show that the scheme has high accuracy.

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