Prof. Lau Wing-Cheong 劉永昌教授

Associate Professor (SMIEEE)
Education: BSc(Eng)(HKU), MS, PhD (Texas)
Research Area: Networking Theory, Internet and Applications; Wireless Communications and Networking
Tel: (852) 3943-8356
Fax: (852) 2603-5032
Address: Rm 818 SHB
Email: wclau [@] ie.cuhk.edu.hk

Prof. Lau's personal website

Research Interests

  • Decentralized Social Networks: Systems, Protocols and Algorithms
  • System Modeling and Performance Analysis for Cloud-based Systems / Services
  • Network / System Security and Privacy
  • Traffic Characterization and Performance Evaluation for Wireless Networks
  • Pervasive and Mobile Computing

Courses Taught


Wing is an Associate Professor in the Department of Information Engineering and the Director of the Mobile Technologies Center at the Chinese University of Hong Kong (CUHK). Before joining CUHK, he spent 10 years in the US with Bell Labs, Holmdel and Qualcomm, San Diego. Wing received his BSEE degree from the University of Hong Kong and MS and PhD degrees in Electrical and Computer Engineering from the University of Texas at Austin. His research interests include System Modeling, Networking Protocol Design and Performance Analysis, Network/Systems Security and Mobile Computing. His recent research projects include: Online Social Network Privacy and Vulnerabilities, High Capacity Authenticated 2D barcodes and their applications, Decentralized Social Networking protocols/systems, Resource allocation for Big Data Processing Clusters and RFID protocols and algorithms. He is/has been on the Technical Program Committee for various international conferences including ACM MobiHoc, Sigmetrics, IEEE Infocom, SECON, ICC, Globecom, WCNC, VTC, and ITC. He also served as the Guest Editor for the Special Issue on High-Speed Network Security of the IEEE Journal of Selected Areas in Communications (JSAC). Wing holds 18 US patents with a few more pending. His research findings have been published in more than 100 scientific papers in major international journals and conferences. Wing is a Senior Member of IEEE and a member of ACM and Tau Beta Pi.

Recent Selected Publications

  • Huanle Xu*, Wing Cheong Lau, Zhibo Yang*, Gustavo de Veciana, Hanxu Hou, " Mitigating Service Variability in MapReduce Clusters via Task Cloning: A Competitive Analysis," to appear in IEEE Transactions on Parallel and Distributed Systems.
  • Huanle Xu*, Gustavo de Veciana, Wing Cheong Lau, "Addressing Job Processing Variability through Redundant Execution and Opportunistic Checkpointing - A Competitive Analysis," IEEE Infocom, May 2017.
  • Huanle Xu*, Wing Cheong Lau, " Optimization for Speculative Execution in Big Data Processing Clusters," in IEEE Transactions on Parallel and Distributed Systems, Vol.28, Issue 2, Feb 2017. 
  • Ronghai Yang*, Wing Cheong Lau, Tianyu Liu*, "Signing into One Billion Mobile App Accounts Effortlessly with OAuth2.0," Black Hat Europe Briefings, London, Nov, 2016.
  • Zhibo Yang*, Zhiyi Cheng*, Chen Change Loy, Wing Cheong Lau, Chak Man Li* and Guanchen Lee*, " Towards Robust Color Recovery for High-Capacity Color QR Codes," IEEE ICIP, Sept, 2016.
  • Ronghai Yang*, Guanchen Lee*, Wing Cheong Lau, Kehuan Zhang, Pili Hu*, " Model-based Security Testing: an Empirical Study on OAuth 2.0 Implementations," ACM AsiaCCS, Xian, June, 2016.
  • Wai Kit Sze*, Yulin Deng*, Wing Cheong Lau, Murali Kodialam, Thyaga Nandagopal and OnChing Yue, "Channel Oblivious Counting Algorithms for Large-scale RFID Systems," IEEE Transactions on Parallel and Distributed Systems, Dec 2015.
  • Huanle Xu* and Wing Cheong Lau, "Task-Cloning Algorithms in a MapReduce Cluster with Competitive Performance Bounds," in IEEE ICDCS, July 2015.
  • Huanle Xu*, Pili Hu*, Wing Cheong Lau, Qiming Zhang* and Yang Wu*,"DPCP: A Protocol for Optimal Pull Coordination in Decentralized Social Networks," IEEE Infocom, Apr. 2015.
  • Huanle Xu* and Wing Cheong Lau, "Optimization for Speculative Execution in a MapReduce-like Cluster," in IEEE Infocom, Apr. 2015.
  • Pili Hu*, Ronghai Yang*, Yue Li* and Wing Cheong Lau, "Application Impersonation: Problems of OAuth and API Design in Online Social Networks," ACM Conference on Online Social Networks (COSN), Dublin, Oct. 2014.
  • Pili Hu*, Wing Cheong Lau, "How to Leak a 100-million-node Social Graph in just one week ? - A Reflection on OAuth and API Deign in Online Social Networks," Black Hat USA Briefings, Las Vegas, Aug. 2014.
  • Chak Man Li*, Pili Hu*, Wing Cheong Lau, "Demo: AuthPaper - Protecting Paper-based Documents/ Credentials using Authenticated 2D Barcodes," in the Procs. of ACM MobiSys, June 2014.

(* = student supervised by Wing)