Title: TCP/IP performance across optical packet-switched networks
Speaker: Jingyi HE
Optical packet-switched (OPS) networks are believed to be
the promising solution to the optical Internet which has
high bandwidth efficiency in addition to the large capacity.
Given that TCP is the most prevalent end-to-end transport
protocol in the Internet, how it performs across OPS networks
is of great interest. However, OPS networks have some special
mechanisms such as packet aggregation and deflection routing
which are different from the electronic packet-switched networks.
In this talk, we present our results on the impact of deflection
routing and packet aggregation on TCP performance
in OPS networks.
We show that deflection routing can significantly improve the TCP
fairness, although it may not be very effective in improving the
TCP throughput in some cases. We study two packet aggregation
schemes, namely, mixed-flow aggregation and per-flow aggregation.
We show that mixed-flow aggregation performs
than per-flow aggregation in terms of both TCP throughput and fairness.
Jingyi He received the B.Eng. and M.Eng. degrees both in optoelectronic
engineering from Huazhong University of Science and Technology, Wuhan,
P. R. China, in July 1996 and June 1999, respectively. He is currently a Ph.D.
candidate in the Department of Electrical and Electronic Engineering at the Hong
Kong University of Science and Technology. His research is on optical Internet.
See http://www.ee.ust.hk/~eehjy/ for more information.