Dr. Tom Hou
Bradley Distinguished Professor of ECE
IEEE Fellow

Dr. Wenjing Lou
W. C. English Endowed Professor of CS
IEEE Fellow


The Complex Networks and Security Research (CNSR) Lab at Virginia Tech was founded in 2011 by Professors Tom Hou and Wenjing Lou. The mission of the CNSR@VT lab is to conduct basic and applied research in a broad range of topics in networking, wireless, and cyber security. We explore novel concepts and ideas related to protocols and systems of the future pervasive cyber infrastructure, and design scalable architecture and trustworthy protocols for next-generation networks.

Current Research Interests

There are two main research thrusts at CNSR@VT:

Wireless Networks Research

  • Mathematical Modeling and Theoretical Foundation: Interference cancellation modeling and analysis, MIMO ad hoc networks, cognitive radio ad hoc networks, wireless energy transfer
  • Network Optimization: Large-scale, discrete and continuous non-convex optimization problems that arise from cross-layer optimizations involving advanced physical layer technologies
  • Algorithm and Protocol Design: Provably optimal and near-optimal algorithms, distributed algorithms and light weight protocols for wireless networks (e.g., ad hoc and sensor networks, multi-hop cooperative communications, opportunistic routing, network coding)

Cyber Security Research

  • Blockchain and IoT Security: blockchain-based systems, smart contract, consensus protocol, user data privacy protection, Internet of Things (IoT) security and privacy
  • Security and Privacy in Networked Information System: ABE-based data encryption and sharing, privacy-preserving data outsourcing in cloud computing, search over encrypted data, secure data computation, trusted execution environment (TEE)
  • Wireless Security: security and privacy in wireless networks and mobile computing, confidentiality and authentication, anonymization and information privacy, cognitive radio networks security, cross-layer methods for security enhancement, location privacy
  • Applied Cryptography


  • August 2019: Prof. Lou delivered a keynote speech on Blockchain at WISA 2019, Jeju Island, Korea.
  • June 2019: Prof. Lou is a keynote speaker at WASA 2019, Honolulu, Hawaii.
  • May 2019: Prof. Lou is a keynote speaker at ACM WiSec 2019, Miami, Florida.
  • May 2019: Ruide Zhang received the runner-up award at Google’s Confidential Computing Challenge.
  • April 2019: Prof. Lou is a keynote speaker at BigSecurity Workshop, collocated with IEEE INFOCOM 2019, in Paris, France.
  • April 2019: Prof. Lou is a distinguished speaker at 2019 Oregon Cybersecurity Day held in University of Oregon, Eugene, Oregon.
  • April 2019: Prof. Lou is a keynote speaker at SPNCE 2019.
  • March 2019: Prof. Lou is a keynote speaker for CRA-W / iAAMCS Distinguished Lecture Series at Capital City Women In Computing Conference 2019, held at James Madison University, March 22-23, 2019.
  • Feb 2019: Prof. Lou and Prof. Ning Zhang are invited speakers at DARPA’s ABC workshop (Applications and Barriers to Consensus Protocols) for their blockchain research work.
  • Nov 2018: Prof. Lou delivered a keynote speech on Blockchain at ICA3PP 2018, Guangzhou, China.
  • Nov 2018: Prof. Hou delivered a keynote speech on real-time scheduling in 5G networks at APCC 2018, Ningbo, China.
  • Nov 2018: Prof. Lou delivered a keynote speech on Blockchain at DLoT 2018, New York City, NY.
  • Aug 2018: Prof. Lou visited Nanyang Technological University, Singapore and delivered a lecture on IoT security in the College of Engineering's Distinguished Speaker Lecture Series.
  • July 2018: Prof. Lou delivered a keynote speech on blockchain at IEEE Blockchain 2018 conference, Halifax, Canada.
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