Research Interests

My general research interests include computer networks and computer systems performance evaluation. More specific interests include Internet technologies, wireless networks, Internet traffic measurement, TCP/IP, Web performance, mobile computing, high speed networking, workload characterization and modeling, and network simulation.

From 2001 to 2011, I led a relatively large iCORE (Informatics Circle of Research Excellence) research team of 20-25 members (faculty, staff, and graduate students) focused on the measurement and evaluation of broadband wireless Internet technologies and applications. Examples of our work are available from my research publications page.

In general, the Networks Research Group focuses on the design and analysis of networked systems and the communication protocols used within these systems. The types of systems of interest include client-server, peer-to-peer (P2P), multimedia, Internet, Web, wireless, and sensor networks. Research techniques employed include analytic, simulation, and experimental investigations. In many cases, tools are developed to test new algorithms and services, or to capture and analyze network measurement data to better understand existing environments and future ones. Recent projects have included collecting and analyzing Internet traffic from the U of C campus wireless network, classifying Internet traffic by network application, and developing traffic engineering rules for cellular data networks.

I am also fortunate to be part of two different NSERC Strategic Network collaborative research projects at the moment:

• NSERC ISSNet (Internetworked Systems Security Network) focuses on Internet security. This project, led by Professor Paul van Oorschot at Carleton University, runs from 2008-2013.
• NSERC SAVI (Smart Applications on Virtual Infrastructure) focuses on the use of virtualization in network technologies and applications. This project, led by Professor Alberto Leon-Garcia at the University of Toronto, runs from 2011-2016.