I graduated with a BS in Computer and Electrical Engineering from Purdue University, West Lafeyette, Indiana, in 1990, MSEE in 1993 and Ph.D. in 1997, both from Columbia University. In Columbia, I was a member of the comet group and worked under the supervision of Prof. Aurel A. Lazar. From 1997 to 2003, I was a Member of Technical Staff in the Networking Research Laboratory, Bell Labs, Lucent Technologies. I join NUS in 2004 and is currently an Associate Professor in School of Computing. I am a member of the Communication and Internet Research Lab