Wireless Information and Intelligence Laboratory

🔬 About the Lab

Wireless Information and Intelligence Laboratory (WIIL) is a joint research group at HUFS, co-directed by Prof. Jung Hoon Lee (이정훈) and Prof. Kyungrak Son (손경락). We study the theory and systems behind next-generation wireless communications and information processing — spanning wireless communications, coding & information theory, signal processing, and machine learning. Our flagship thrusts include LEO satellite communications, coded/distributed computing for edge AI, and physical-layer security. Both PIs earned their Ph.D. in Electrical Engineering at KAIST, giving the group a shared foundation in communication theory and a complementary reach from device-level systems to information-theoretic algorithm design.

한국외국어대학교 정보통신공학과·전자공학과 두 교수가 함께 운영하는 공동 연구실입니다. 무선통신·정보/부호이론·신호처리·머신러닝을 아우르며, LEO 위성통신, 엣지 AI를 위한 부호화 분산컴퓨팅, 물리계층 보안 등으로 연구를 확장하고 있습니다.

📊 At a Glance

🧩 Research Highlights

• LEO Satellite Communications — beam-squint mitigation, tensor-based & decentralized channel estimation, random-beam NOMA
• Coding & Information Theory — index coding, coded computing, coded matrix computation, straggler mitigation via Steiner systems
• Signal Processing & Machine Learning — ML-based beamforming/power allocation, ISAC, and machine-learning-aided communication
• Physical-Layer Security — opportunistic jammer/relay selection, covert communications, secrecy degrees of freedom

👥 Faculty

📰 Latest News

• 2026 — G. Kim, J. Park, J. Kim, S. Han, K. Son, I. Jang, “SERC: LDPC-inspired semantic error correction for retrieval-augmented generation,” IEEE ICPR (accepted).
• 2026 — H. Lee, M. Jung, K. Son, “Rethinking cross-layer dependency in MPQ: Sparsification with PSD framework,” IEEE Signal Processing Letters.
• 2026 — M. Kang, J. H. Lee, I.-G. Lee, “Machine learning-based power allocation for covert communication in LEO satellite–UAV cooperative networks,” Computer Modeling in Engineering & Sciences.
• 2026 — New NRF grant (PI: K. Son): “Low-complexity wireless communication systems inspired by distributed computing and complexity theory” (2026–2029).
• 2026 — New NRF grant (PI: J. H. Lee): “Beam design for beam-squint mitigation and exploitation in terahertz communication systems” (2026–2029).
• Dec 2025 — J. H. Lee, P. Kim, J. Y. Lee, K. Son, “Beamforming for beam-squint effect mitigation in LEO satellite communication systems,” ICT Express.
• Nov 2025 — J. H. Lee received the KICS Service Award (한국통신학회 공로상).
• Aug 2025 — K. Son, P. Kim, J. H. Lee, “Tensor-based channel estimation considering beam squint effects in LEO satellite communications,” IEEE Access.
• Jul 2025 — K. Lee, J. H. Lee, W. Choi, “User-centric association and feedback bit allocation for FDD cell-free massive MIMO,” IEEE Trans. Wireless Communications.
• Jun 2025 — J. Y. Ryu, J. H. Lee, “Relay selection for covert communication with an active warden,” Sensors.
• Jun 2025 — J. Y. Ryu, J. H. Lee, “Covert communications via full-duplex user relaying,” Sensors.
• Oct 2024 — J. H. Lee received the ICTC 2024 Best TPC Award.
• 2024 — K. Son and W. Choi, “Coded matrix computation in wireless network,” IEEE Trans. Wireless Communications.
• 2024 — M. Kang, J. H. Lee, J. Y. Ryu, “Machine learning-based NOMA for multiuser MISO broadcast channels,” IEEE Communications Letters.
• 2024 — S.-Y. Kim, S.-H. Park, J. H. Lee, I.-G. Lee, “Secure triggering frame-based dynamic power saving mechanism against battery draining attack in Wi-Fi-enabled sensor networks,” Sensors.

📢 We are recruiting M.S./Ph.D. students and undergraduate researchers — see Openings.

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