Thời gian: 9h ngày 21 tháng 05 năm 2009
Địa điểm: P. I42.
Title:
Internet Equilibrium Analysis
Through Separation of User and Network Behavior
Speaker:
Y.C. Tay (National University of Singapore)
Abstract:
Internet complexity makes reasoning about traffic equilibrium difficult,
partly because users react to congestion. This difficulty calls for
an analytic technique that is simple, yet have enough details
to capture user behavior and flexibly address a broad range of issues.
This talk presents such a technique. It treats traffic equilibrium as
a balance between an inflow controlled by user demand, and an outflow
provided by network supply (link capacity, congestion avoidance, etc.).
This decomposition is demonstrated with a surfing session model,
and validated with a traffic trace and NS2 simulations.
The technique's accessibility and breadth are illustrated
through an analysis of several issues concerning the location,
stability, robustness and dynamics of traffic equilibrium.
(Joint work with D. Nguyen Tran, Eric Y. Liu, Wei Tsang Ooi and Robert
Morris, in Computer Networks, Vol. 52, No. 18, Dec. 2008.)