Professor

Prof. Chang-sik Choi

Chang-Sik Choi is an Assistant Professor in the School of Electrical Engineering at KAIST, where he leads the CONNECT Lab. His research focuses on developing tractable and geometry-aware models for next-generation communication systems, including satellite networks and vehicular networks using mathematical tools.

Prior to joining KAIST, he was with SKKU, Hongik University, and Qualcomm Wireless R&D, where he worked on vehicular communications and positioning systems, contributing to multiple patents. He received his Ph.D. in Electrical Engineering from The University of Texas at Austin.

His current research aims to establish a new analytical framework for large-scale wireless networks by explicitly incorporating orbital structures and dynamics, moving beyond conventional spatial models.

Prof. Chang-Sik Choi (최창식)

Research interest

Modeling and Analysis of cellular communications, vehicle-to-all communications, satellite communications
Vehicle positioning for autonomous driving

Education

Ph.D. The University of Texas at Austin ECE 2019
MS: The University of Texas at Austin ECE 2014
BSEE: Seoul National University ECE 2012 (summa cum laude)

Professional Experience

KAIST, Assistant Professor, 2025~
SKKU, Assistant Professor, 2025
Hongik University, Assistant Professor, 2021-2024
Qualcomm, Senior system engineer 2020-2021

Selected Publications

Chang-Sik Choi*, "Analysis of a Delay-Tolerant Data Harvesting Architecture Leveraging Low Earth Orbit Satellite Networks," IEEE Journal on Selected Areas Communications, May 2024 (Telecommunication Journal Ranking 상위 2%)
Chang-Sik Choi*, "Modeling and Analysis of Downlink Communications in a Heterogeneous LEO Satellite Network," IEEE Transactions on Wireless Communications, Aug 2024 (Telecommunication Journal ranking 상위 5%)

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