Raj Jain (born 17 August 1951) is a professor of Computer Science and Engineering in the Washington University School of Engineering and Applied Science at Washington University in St. Louis, Missouri.
Education
Dr. Jain obtained a Ph.D. in Applied Mathematics (
Computer Science) from Harvard University, Cambridge, Massachusetts in 1978, an M.E. in Automation from Indian Institute of Science Bangalore, India in 1974, and a B.E. in Electrical Engineering from Awdhesh Pratap Singh University, Rewa, Madhya Pradesh, India in 1972.
Affiliations
Until 2005 he was the Chief Technology Officer and Co-Founder of Nayna Networks, Inc. – a next generation telecommunications systems company in San Jose, CA. Prior to that he was a professor of Computer and Information Sciences at the Ohio State University in Columbus, Ohio and a Senior Consulting Engineer at Digital Equipment Corporation in Littleton, Massachusetts. He was also a visiting scientist at Massachusetts Institute of Technology in 1983, 1985, and 1987. He has been a professor at Washington University in St. Louis,
Missouri since 2005.
Research contributions
Dr. Jain is the co-inventor of the
DECbit scheme for congestion avoidance in computer networks
[ DEC-bit Patent] which has been adapted for implementation in Frame Relay networks as forward explicit congestion notification (FECN), ATM Networks as Explicit Forward Congestion Indication (
EFCI), and TCP/IP networks as Explicit Congestion Notification (ECN).
He is also the co-inventor of the Additive Increase Multiplicative Decrease (AIMD) principle used for traffic management in computer networks and Jain's fairness index.[ Analysis of the increase and decrease algorithms for congestion avoidance in computer networks][ A Quantitative Measure Of Fairness And Discrimination For Resource Allocation In Shared Computer Systems]
His work on timeout based congestion control influenced the design of the slow start algorithm in TCP/IP networks.[ A timeout-based congestion control scheme for window flow-controlled networks]
[ Congestion avoidance and control]
Publications
He is author of four books. His second book
The Art of Computer Systems Performance Analysis published by Wiley Interscience won the 1991
Best Advanced How-to Book, Systems award from Computer Press Association.
[ The Art of Computer Systems Performance Analysis: Techniques for Experimental Design, Measurement, Simulation, and Modeling]
