Dr. M. Yahya “Medy” Sanadidi received his Ph. D. in computer science from UCLA in 1982. He is currently a research professor at the UCLA computer science department. As co-principal investigator on NSF sponsored research, he is leading research in modeling and evaluation of high performance Internet protocols. He teaches undergraduate and graduate courses at UCLA on queuing systems and computer networks. Dr. Sanadidi was a manager and senior consulting engineer at Teradata/AT&T/NCR from 1991 to 1999 and led several groups responsible for performance modeling and analysis, operating systems, and parallel query optimization. From 1984 to 1991, he held the position of Computer Scientist at Citicorp where he pursued R&D projects in wireless metropolitan area data communications and other networking technologies. In particular, between 1984 and 1987, he lead the design and prototyping of an Aloha Wireless MAN for home banking and credit card verification applications. From 1981 to 1983, Dr. Sanadidi was an assistant professor at the computer science department, University of Maryland, College Park, Maryland. There, he taught performance modeling, computer architecture and operating systems, and was principal investigator for NSA sponsored research in global data communications networks. Dr. Sanadidi has consulted for industrial concerns, has co-authored conference as well as journal papers, and holds two patents in performance modeling. He participated as reviewer and as program committee member of professional conferences. His current research interests are in congestion control and adaptive multimedia streaming protocols in heterogeneous (wired/wireless) networks.