Wei Liu (刘威)

Biography

Hey! I am Wei Liu, currently an Assistant Researcher at Zhongguancun Laboratory. I received my Ph.D. degree from Tsinghua University, where I was fortunate to be advised by Prof. Yuanjie Li. Previously, I obtained my bachelor's degree from Beijing University of Posts and Telecommunications (BUPT).

My research interests lie in satellite networks and cellular networks. My current research focuses on direct-to-cell satellite networks.

I actively maintain an open bibliography page for satellite network papers, projects, and resources on Github. Check here for details.

Education

Publications

• A Variegated Look at Direct-to-Cell Satellites in the Wild

  Wei Liu*, Jingyi Lan*, Yuanjie Li, Bowen Sun, Yekai Dong, Yufeng Wang, Hewu Li, Qian Wu, Zeqi Lai, Jun Liu

  ACM Annual Conference of Special Interest Group on Measurement and Evaluation (SIGMETRICS'26)

  paper

• Direct-to-Cell Satellite Network without Satellite Navigation

  Wei Liu, Yuanjie Li, Jingyi Lan, Hewu Li, Yimei Chen, Lixin Liu, Jiabo Yang, Xi Long, Li Ouyang, Minghao Tang, Jianping Wu, Qian Wu, Jun Liu, Zeqi Lai

  Annual conference of the ACM Special Interest Group on Data Communication (SIGCOMM'25)

  paper

• The Dark Side of Scale: Insecurity of Direct-to-Cell Satellite Mega-Constellations

  Wei Liu, Yuanjie Li, Hewu Li, Yimei Chen, Yufeng Wang, Jingyi Lan, Jianping Wu, Qian Wu, Jun Liu, Zeqi Lai

  The 45th IEEE Symposium on Security and Privacy (S&P'24).

  paper

• A Networking Perspective on Starlink's Self-Driving LEO Mega-Constellation

  Yuanjie Li, Hewu Li, Wei Liu, Lixin Liu, Wei Zhao, Yimei Chen, Jianping Wu, Qian Wu, Jun Liu, Zeqi Lai, Han Qiu

  ACM International Conference on Mobile Computing and Networking (MobiCom'23).

  paper slide

• A case for stateless mobile core network functions in space

  Yuanjie Li, Hewu Li, Wei Liu, Lixin Liu, Yimei Chen, Jianping Wu, Qian Wu, Jun Liu, Zeqi Lai

  Annual conference of the ACM Special Interest Group on Data Communication (ACM SIGCOMM'22).

  paper code video pubilc review

• Stable Hierarchical Routing for Operational LEO Networks

  Yuanjie Li, Lixin Liu, Hewu Li, Wei Liu, Yimei Chen, Wei Zhao, Jianping Wu, Qian Wu, Jun Liu, Zeqi Lai

  The 30th Annual International Conference On Mobile Computing And Networking (MobiCom'24).

  paper IETF-121 slide meeting

• Enabling 6G and Beyond Network Functions from Space: Challenges and Opportunities

  Lixin Liu, Wei Liu, Yuanjie Li, Hewu Li

  IEEE Internet Computing, 2024.

  paper

• “Internet in Space” for Terrestrial Users via Cyber-Physical Convergence

  Yuanjie Li, Hewu Li, Lixin Liu, Wei Liu, Jiayi Liu, Jianping Wu, Qian Wu, Jun Liu, Zeqi Lai

  Twentieth ACM Workshop on Hot Topics in Networks (ACM HotNets'21).

  paper video

• Democratizing Direct-to-Cell Low Earth Orbit Satellite Networks

  Lixin Liu, Yuanjie Li, Hewu Li, Jiabo Yang, Wei Liu, Jingyi Lan, Yufeng Wang, Jiarui Li, Jianping Wu, Qian Wu, Jun Liu, Zeqi Lai

  The 21st USENIX Symposium on Networked Systems Design and Implementation (NSDI'24).

  Outstanding Paper Award

  paper

• Mind the Location Leakage in LEO Direct-to-Cell Satellite Networks

  Weisen Liu, Zeqi Lai, Qian Wu, Hewu Li, Yuxuan Weng, Wei Liu, Qi Zhang, Jihao Li, Yuanjie Li, Jun Liu

  The 46th IEEE Symposium on Security and Privacy (S&P'25)

Open-Source Software and Community Resources

1. MobileInsight: Extracting and Analyzing Cellular Network Information on Smartphones.

   MobileInsight enables below-IP, fine-grained mobile network analytics on the end device. It is a cross-platform package for mobile network monitoring and analysis.

   2021 - present.

   GitHub: ★ —, ⋔ —

2. Awesome Satellite Network: Curated Satellite Networking Research Repository.

   A maintained collection of academic papers, open-source projects, datasets, tutorials, and tools for the satellite networking community.

   2023 - present.

   GitHub: ★ —, ⋔ —

Academic Services

• Reviewer for Transactions on Mobile Computing (TMC)
• Artifact Evaluation Program Committee for SIGCOMM 2025, 2024, NSDI 2027, 2026
• Shadow Program Committee for CoNEXT 2025

Teaching Experience

• Technical Reading, Writing, and Presentation for Cyberspace Security 2023, THU (AY 2023/2024, Semester 1), Teaching Assistant
• Wireless and Mobile Network Security 2023, THU (AY 2022/2023, Semester 2), Teaching Assistant
• Technical Reading, Writing, and Presentation for Cyberspace Security 2022, THU (AY 2022/2023, Semester 1), Teaching Assistant

Selected Honors and Awards

• Outstanding Graduate of Institute for Network Sciences and Cyberspace, Tsinghua University, 2026
• SIGMETRICS Student Travel Grant, 2026
• National Scholarship, 2025
• The First Price Scholarship of Tsinghua University, 2024
• Outstanding Graduate of Beijing University of Posts and Telecommunications, 2021
• The First Price Scholarship of Beijing University of Posts and Telecommunications, 2017, 2018 and 2019