I am a PhD student in the Department of Computer Science at the University of Illinois Urbana-Champaign (UIUC), advised by Prof. Klara Nahrstedt. My research centers on mobile computing, indoor localization, and wireless sensing systems. I build systems that enable accurate, infrastructure-free positioning for everyday devices. I have also worked with Prof. Deepak Vasisht and Prof. Matthew Caesar.
Prior to my PhD, I interned on the Google Android Indoor Localization Team (2025), where I worked on next-generation indoor localization for Google Maps with Dr. Roy Want. I hold an M.S. and B.S. (Highest Distinction) in CS/Statistics from UIUC.
News
Apr 2026New preprints on arXiv: Communication-Aware Multi-Agent RL for Decentralized UAV Deployment and Real-Time Loop Closure Detection in Visual SLAM via NetVLAD and Faiss.
Nov 2025Our paper Scalable Indoor Localization with Non-Cooperative Wi-Fi Ranging won Best Poster Runner-Up at MobiCom 2025 in Hong Kong!
Aug 2025Completed my internship at Google (Android Location Team), building a Wi-Fi RTT + PDR indoor localization system achieving 0.8 m accuracy at 90% CDF.
Jun 2025Preprint released: Crowdsourcing Ubiquitous Indoor Localization with Non-Cooperative Wi-Fi Ranging on arXiv.
Aug 2024Started my PhD at UIUC CS.
Research
My work focuses on making accurate localization available everywhere — even indoors where GPS fails — without requiring specialized infrastructure. Key themes:
- Indoor Localization: Scalable, infrastructure-free positioning using standard Wi-Fi (RTT/FTM), IMU sensors, and probabilistic/optimization-based backends.
- Sensor Fusion: Combining inertial, RF, and visual signals (PDR, Kalman filtering, EKF) for robust state estimation on mobile devices.
- Wireless Systems: Characterizing and exploiting non-cooperative Wi-Fi behavior, multipath modeling, and clock-offset-robust ranging.
- Robotics & Security: UAV swarm coordination, GPS spoofing detection, and SLAM.
Selected Publications
Scalable Indoor Localization with Non-Cooperative Wi-Fi Ranging Best Poster Runner-Up
Enguang Fan*, Emerson Sie*, Federico Cifuentes-Urtubey, Deepak Vasisht
MobiCom 2025 — 31st ACM Int'l Conference on Mobile Computing and Networking, Hong Kong, Nov 2025 ·
PDFCrowdsourcing Ubiquitous Indoor Localization with Non-Cooperative Wi-Fi Ranging
Emerson Sie*, Enguang Fan*, Federico Cifuentes-Urtubey, Deepak Vasisht
Communication-Aware Multi-Agent Reinforcement Learning for Decentralized Cooperative UAV Deployment
Enguang Fan, Y. Chen, Z. Shan, Matthew Caesar, Jae H. Kim
Towards Effective Swarm-Based GPS Spoofing Detection in Disadvantaged Platforms
Enguang Fan, Anfeng Peng, Matthew Caesar, Jae H. Kim, Josh Eckhardt, Greg Kimberly, Denis Osipychev
IEEE MILCOM 2023, Boston, Oct 2023 · 8 citations
View all publications →
Contact
Department of Computer Science, UIUC
201 N. Goodwin Ave, Urbana, IL 61801
enguang2 [at] illinois.edu
