Kostas received the Diploma (B.S.) in electrical engineering from the National Technical University of Athens, Greece in 1997, and the M.S. and Ph.D. in electrical engineering in 1999 and 2003 respectively from Stanford University. He was employed as a post-doctoral research fellow at Stanford in 2003, and was appointed to the Ming Hsieh Electrical Engineering-Systems faculty in 2003 as assistant professor. He also has a joint appointment in the USC Department of Computer Science.
Prof. Psounis' research is on the mathematical foundations and theory of networks, including performance analysis, as well as more applied studies of protocol implementation and system specification. He is known for his work on routing techniques for networks with intermittent connectivity (such as mobile networks) that achieve near-optimal performance while avoiding excessive network loading and resource use.
He also studies the optimal performance limits of static multi-hop wireless networks that pass messages through multiple nodes, and has developed rate control and scheduling techniques for efficient use of their available resources. A final topic is on downscaling techniques for modeling the behavior of large very complex networks (such as the Internet, or other wireless and telecomm networks). He received a Cisco Systems "Best and Most Compelling Presentation and Demonstration Award" at a networking workshop competition, a USC Zumberge Faculty Research and Innovation Award, and a Viterbi School of Engineering Innovative Research Award.