Authors: Hongliang Luo, Feifei Gao, Hai Lin, Shaodan Ma, H. Vincent Poor

Published on: May 20, 2023

Impact Score: 8.22

Arxiv code: Arxiv:2305.12064

Summary

• What is new: Introduced a novel use of the beam squint effect in massive MIMO systems for fast, non-cooperative dynamic target sensing, termed as You Only Listen Once (YOLO).
• Why this is important: The challenge in dynamic target sensing within the Terahertz band using integrated sensing and communications, which is traditionally slow due to beam sweeping.
• What the research proposes: A beamforming strategy that leverages the beam squint effect by adjusting phase shifters and true time delay lines, coupled with an algorithm for estimating target angles and a method for calculating distance and velocity from phase changes.
• Results: Demonstrated the proposed scheme’s effectiveness in significantly reducing sensing overhead and improving dynamic target sensing speed through simulation.

Technical Details

Technological frameworks used: Integrated Sensing and Communications (ISAC)

Models used: Wideband channel model, Beamforming strategy, Extended array signal estimation method

Data used: Echo signals at different subcarriers

Potential Impact

Defense, autonomous driving industries, telecommunications

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