I am a PhD Candidate in the Department of Computer Science at the Florida State University. I am currently pursuing my Ph.D. under the supervision of Prof. Xin Liu. My research focuses on wireless sensing and security, with an emphasis on contact-free and privacy-preserving human monitoring and authentication using Wi-Fi devices. By integrating signal processing and machine learning, I enable ubiquitous Wi-Fi systems to sense human motion without cameras or wearables, and extend wireless sensing from single-user to multi-user scenarios through spatial signal modeling.