About me

I am currently a Postdoctoral Researcher in the Department of Information Engineering at The Chinese University of Hong Kong (CUHK), working with Prof. Xiaojun Lin and Prof. He Chen. I received my Ph.D. degree in Information Engineering from CUHK, where I was supervised by Prof. He Chen.

My research advances wireless system performance through physical-layer security, intelligent sensing, and AI-signal processing fusion. Recently, I have been focused on the cross-band channel prediction for 5G O-RAN systems, where I aim to combine physics-based modeling with deep learning to improve spectral efficiency in practical deployments.

News

• 26 Mar: Two papers, Domino and CIRSense, are accepted by ICASSP 26 and TMC.
• 25 Sep 12: Invited Talk at the CityU-CCCN-PolyU Joint Seminars.

Selected Publications

	CIRSense: Rethinking WiFi Sensing With Channel Impulse Response Ruiqi Kong and He (Henry) Chen in IEEE Transactions on Mobile Computing, 2026 IEEE Xplore   DOI   Github   Dataset
	CSI-RFF: Leveraging Micro-Signals on CSI for RF Fingerprinting of Commodity WiFi Ruiqi Kong and He (Henry) Chen in IEEE Transactions on Information Forensics and Security, 2024 IEEE Xplore   Github
	DeepCRF: Deep Learning-Enhanced CSI-Based RF Fingerprinting for Channel-Resilient WiFi Device Identification Ruiqi Kong and He (Henry) Chen in IEEE Transactions on Information Forensics and Security, 2024 Arxiv   IEEE Xplore   Github