**** Columbia Network Research Group Seminar ****
Title:    Fluid Modeling of TCP & its Applications 
Speaker:  Vishal Misra
          Post-Doctoral research associate
          Computer Networks Research Group
          University of Masschusetts, Amherst
When:     Wednesday, November 15, 2000, 10 am
Where:    Interschool Lab, CEPSR Building, 7th floor
          Columbia University

In this work we develop a coupled differential equation model of TCP and
active queue management.  We verify the accuracy of the model via
comparison of performance metric predictions with ns-2 simulations and
show significant computation time speed ups.  We then further develop
the differential equation model to examine the problem of RED parameter
setting from a control theory perspective.  We highlight some
fundamental limitations of RED from our studies and propose alternative
schemes to address those limitations.  We compare the performance of our
schemes with RED via ns-2 simulations.

Bio:

Dr.  Vishal Misra finished his PhD in the ECE department of University
of Massachusetts, Amherst in February 2000.  His dissertation was in the
area of Stochastic Models for Network Traffic.  He has since joined the
Computer Networks Research Group in the Computer Science Dept.  of UMass
as a Post-Doctoral Research Associate.  Some of his current research
interests are Fluid modeling and novel Congestion Control schemes for
the Internet.