Sensing-Assisted Beam Tracking with Real-Time Beamwidth Adaptation for THz Communications
Wuhan Chen, Yuheng Fan, Chuang Yang, Mugen Peng

TL;DR
This paper introduces a sensing-assisted beam tracking method with real-time beamwidth adaptation for THz communications, enhancing high-mobility target tracking and data rate stability.
Contribution
It proposes a novel real-time sensing-assisted beam tracking scheme with adaptive beamwidth, improving target tracking and communication reliability in high-mobility scenarios.
Findings
Significantly improves data rate performance.
Reduces outage probability.
Effective in high-mobility environments.
Abstract
Terahertz (THz) communications, with their substantial bandwidth, are essential for meeting the ultra-high data rate demands of emerging high-mobility scenarios such as vehicular-to-everything (V2X) networks. In these contexts, beamwidth adaptation has been explored to address the problem that high-mobility targets frequently move out of the narrow THz beam range. However, existing approaches cannot effectively track targets due to a lack of real-time motion awareness. Consequently, we propose a sensing-assisted beam tracking scheme with real-time beamwidth adaptation. Specifically, the base station (BS) periodically collects prior sensing information to predict the target's motion path by applying a particular motion model. Then, we build a pre-calculated codebook by optimising precoders to align the beamwidth with various predicted target paths, thereby maximising the average…
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Taxonomy
TopicsMicrowave Engineering and Waveguides · Superconducting and THz Device Technology · Antenna Design and Optimization
MethodsBalanced Selection · ALIGN
