Research

Networking and Communications

Columbia University prides itself in having one of the top networking research groups in the world. Most of the research is organized around a number of centers and research groups. These include: COMET Group, Columbia Networking Research Center, and Center for Resilient Networks.

  A wide range of research studies is pursued within the networking and communications area. Broadly, they span existing technologies and include exciting, new, and still evolving networking technologies. The methodologies at play vary from empirical and experimental approaches to mathematical modeling and analysis. A representative list of topics is as follows:

• Web and Internet traffic modeling
• Dynamic channel allocation
• Distributed caching systems
• Reservation protocols
• Networking games and pricing
• Open programmable networks
• Routing algorithms
• Multicast protocols
• Mobile networking
• Quality-of-service
• Network security privacy and reliability
• Internet performance modeling and analysis
• Internet telephony and document marking

Labs

• Comet Group
• Columbia Networking Research Center
• Center for Resilient Networks

Professors

Keren Bergman
Professor (fiber optic networks, photonic packet switching and interconnects for high performance computing, optical soliton pulse sources, and ultrafast switching)  

Edward G. Coffman Jr.
Professor Emeritus (analysis of stream merging algorithms, search engine robots, caching systems, traffic prediction, and hotspots on the Web)

Predrag R. Jelenkovic
Professor (mathematical foundations of communication networks with emphasis on emerging services and traffic paradigms) 

Aurel A. Lazar
Professor (networking games, programmable networks, and building resilient networks)

Nick F. Maxemchuk
Professor (network routing, flow control, and media access)

Vishal Misra
Associate Professor (performance modeling, analysis, and design of algorithms for communication networks)

Debasis Mitra
Professor (scientific foundations of policy that impact engineers and engineering systems, network economics, science and management of innovations and knowledge creation, cooperative inter-networking, network planning and resource sharing)

Dan Rubenstein
Associate Professor (performance evaluation of networked systems, peer-to-peer overlay networking, and network security)

Henning Schulzrinne
Professor (Internet real-time and multimedia services and protocols, modeling and analysis of computer-communication networks, operating systems, network security)

Xiaodong Wang
Professor (wireless networks, network tomography, and cross-layer design)  

Gil Zussman
Assistant Professor (wireless and mobile networks, including ad hoc, mesh, senso, vehicular, and cognitive radio networks)