Georgia Tech: Networking & Telecommunications

Academic Faculty

Prof. Mostafa Ammar
GCATT 219, 404-894-3292
ammar -at-

Mostafa Ammar is a Regents' Professor with the College of Computing at Georgia Tech. He has been with Georgia Tech since 1985. He received the S.B. and S.M. degrees from the Massachusetts Institute of Technology in 1978 and 1980, respectively and the Ph.D. in Electrical Engineering from the University of Waterloo, Ontario, Canada in 1985. Prof. Ammar's research interests are in network architectures, protocols and services. He has contributions in the areas of multicast communication and services, multimedia streaming, content distribution networks, network simulation and most recently in disruption-tolerant networks. He was the co-recipient of the Best Paper Awards at the 7th WWW conference for the paper on the "Interactive Multimedia Jukebox" and the 2002 Parallel and Distributed Simulation (PADS) conference for the paper on "Updateable Network Simulation". He served as the Editor-in-Chief of the IEEE/ACM Transactions on Networking from 1999 to 2003. Prof. Ammar is a Fellow of the IEEE and a Fellow of the ACM.

Prof. Constantinos Dovrolis
GCATT 218, 404-385-4205
dovrolis -at-

Constantinos Dovrolis is an Assistant Professor at the College of Computing of the Georgia Institute of Technology. He received the Computer Engineering degree from the Technical University of Crete (Greece) in 1995, the M.S. degree from the University of Rochester in 1996, and the Ph.D. degree from the University of Wisconsin-Madison in 2000. Prior to joining Georgia Tech, he was an assistant professor of Computer Science at the University of Delaware from January 2001 to July 2002. His research interests include methodologies and applications of network measurements, bandwidth estimation algorithms and tools, overlay networks, service differentiation, and network problem diagnosis. He received the NSF CAREER award in 2004.

Prof. Nick Feamster
Klaus 3348, 404-385-1944
feamster -at-

Nick Feamster is an associate professor in the College of Computing at Georgia Tech. He currently directs the Network Operations and Internet Security Lab. He received his Ph.D. in Computer science from MIT in 2005, and his S.B. and M.Eng. degrees in Electrical Engineering and Computer Science from MIT in 2000 and 2001, respectively. His research focuses on many aspects of computer networking and networked systems, including the design, measurement, and analysis of network routing protocols, network operations and security, and anonymous communication systems. In December 2008, he received the Presidential Early Career Award for Scientists and Engineers (PECASE) for his contributions to cybersecurity, notably spam filtering. His honors include the Technology Review 35 "Top Young Innovators Under 35" award, a Sloan Research Fellowship, the NSF CAREER award, the IBM Faculty Fellowship, and award papers at SIGCOMM 2006 (network-level behavior of spammers), the NSDI 2005 conference (fault detection in router configuration), Usenix Security 2002 (circumventing web censorship using Infranet), and Usenix Security 2001 (web cookie analysis).

Prof. Jun (Jim) Xu
GCATT 217, 404-385-2168
jx -at-

Jun Xu is an Associate Professor in the College of Computing at Georgia Institute of Technology. He received the B.S. degree in computer science from Illinois Institute of Technology in 1995 and a Ph.D. degree in computer and information science from The Ohio State University in 2000. His long-term research interests focus on designing practical and effective systems and techniques for improving the security, performance and reliability of network infrastructure (e.g., Internet) and applications (peer-to-peer networks). He also studies fundamental theoretical computer science questions (e.g., fundamental functionality-complexity tradeoffs) that arise in building these systems.

Prof. Ellen Zegura
GCATT 216, 404-894-1403
ewz -at-

Ellen W. Zegura received the B.S. degree in Computer Science (1987), the B.S. degree in Electrical Engineering (1987), the M.S. degree in Computer Science (1990) and the D.Sc. in Computer Science (1993) all from Washington University, St. Louis, Missouri. Since 1993, she has been on the faculty in the College of Computing at Georgia Tech. She was an Assistant Dean in charge of Space and Facilities Planning from Fall 2000 to January 2003. She served as Interim Dean of the College for six months in 2002. Since February 2003, she has been an Associate Dean, with responsibilities ranging from Research and Graduate Programs to Space and Facilities Planning. She has spent five years as the user representative in the planning of the Klaus Advanced Computing Technologies Building, scheduled to open in Fall 2006. Starting in August 2005, she has chaired the Computing Science and Systems Division of the College of Computing. Prof. Zegura's research work concerns the development of wide-area (Internet) networking services and, more recently, mobile wireless networking. Wide-area services are utilized by applications that are distributed across multiple administrative domains (e.g., web, file sharing, multi-media distribution). Her focus is on services implemented both at the network layer, as part of network infrastructure, and at the application layer. In the context of mobile wireless networking, she is interested in challenged environments where traditional ad-hoc and infrastructure-based networking approaches fail. These environments have been termed Disruption Tolerant Networks.

Prof. Russell J Clark
Research Scientist
GCATT 221, 404-894-6705
rjc -at-

Russell Clark holds the B.S. (87) in Mathematics and Computer Science from Vanderbilt University and the M.S. (92) and Ph.D. (95) in Information and Computer Science from the Georgia Institute of Technology. He is currently a researcher and part-time instructor in the College of Computing at Georgia Institute of Technology. From 1997-2001 he was a Senior Scientist with Empire Technologies, Incorporated. He was an Assistant Professor of Computer Science at the University of Dayton in Dayton, Ohio for the years 1995-97. From 1987-90 he was a Software Engineer with Data General Corporation. Prof. Clark's research interests include routing and location protocols for peer-to-peer and mobile systems, scalable network services using multicast distribution, and automated network management systems.