Hyeonjin Chung — accepted AI-conference papers

2024

Radio Slam with Hybrid Sensing for Mixed Reflection Type Environments

Jaebok Lee, Hyunwoo Park, Hyeonjin Chung, Sunwoo Kim

ICASSP 2024accepted

Radio simultaneous localization and mapping (SLAM) with active sensing, such as radar and LiDAR, faces difficulty in detecting mirror-like walls that cause specular reflection. To solve this problem, the proposed radio SLAM algorithm merges active and passive sensing. Passive sensing exploits low-fr…

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2022

Efficient Two-Stage Beam Training and Channel Estimation for Ris-Aided Mmwave Systems Via Fast Alternating Least Squares

Hyeonjin Chung, Sunwoo Kim

ICASSP 2022accepted

This paper proposes a two-stage beam training and a channel estimation based on fast alternating least squares (FALS) for reconfigurable intelligent surface (RIS)-aided millimeter-wave systems. To reduce the beam training overhead, only selected columns and rows of the channel matrix are observed by…

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