Our research in intelligent networking focuses on enhancing the performance and adaptability of next-generation wireless and communication systems. Key areas include:
Advanced Wi-Fi Systems: Designing MAC protocols, channel access mechanisms, and user scheduling strategies to support high-throughput, low-latency communication.
MIMO/OFDMA and CSI Feedback: Optimizing multi-user MIMO networks using adaptive CSI feedback compression and dynamic user selection techniques.
Cross-Layer and Full-Duplex Design: Bridging physical and MAC layers to enable smarter coordination in dense and heterogeneous network environments.
AI Integration: Employing machine learning for resource allocation, interference mitigation, and network performance prediction
We aim to build communication systems that are not only fast and scalable but also context-aware and robust to real-world variability.
CFX: Contention-Free Channel Access for IEEE 802.11ax
Kyu-haeng Lee, and Daehee Kim
MDPI Sensors, 2022
Cross-Layer Optimization for Heterogeneous MU-MIMO/OFDMA Networks
Kyu-haeng Lee and Daehee Kim
MDPI Sensors, 2021
Using OFDMA for MU-MIMO User Selection in 802.11ax-Based Wi-Fi Networks
Kyu-haeng Lee
IEEE Access, 2019
Performance Analysis of the IEEE 802.11ax MAC Protocol for Heterogeneous Wi-Fi Networks in Non-Saturated Conditions
Kyu-haeng Lee
MDPI Sensors, 2019
DiFuse: Distributed Frequency Domain User Selection for Multi-User MIMO Networks
Kyu-haeng Lee, Joon Yoo, Chong-kwon Kim
Wireless Networks, 2018
Performance of the Full-Duplex MAC Protocol in Non-Saturated Conditions
Kyu-haeng Lee, Joon Yoo
IEEE Communications Letters, 2017
CTI in Wi-Fi/Bluetooth Combo Modules
Junhyun Park, Jiyoung Kim, Kiseog Kim, Seowoo Jang, Chong-Kwon Kim, Jaehyuk Choi, Kyu-haeng Lee, Sangsoon Lim, and Woojin Park
USENIX Symposium on Networked Systems Design and Implementation (NSDI), 2016
link
StreetSense: Effect of Bus Wi-Fi APs on Pedestrian Smartphones
Sehyun Bae, Daehyun Ban, Dahyeon Han, Jiyoung Kim, Kyu-haeng Lee, Sangsoon Lim, Woojin Park, Chong-kwon Kim
ACM Internet Measurement Conference (IMC), 2015
802.11mc: Using Packet Collision as an Opportunity in Heterogeneous MIMO-Based Wi-Fi Networks
Kyu-haeng Lee, Joon Yoo, Young-myoung Kang, Chong-kwon Kim
IEEE Transactions on Vehicular Technology (TVT), 2015