PhD Qualifying Examination


"A Survey on Congestion Control Protocols for the Internet"

Mr. Jian Pu


Abstract:

The congestion control mechanism embedded in TCP is critically important
to make the Internet work efficiently and stably. However, as more and
more high-speed links (e.g., optical fibers), long-delay and
variable-delay links (e.g., satellite links), lossy links (e.g., wireless
networks) becoming widely employed in the Internet, TCP's congestion
control exhibits several shortcomings, such as poor utilization of the
bottleneck link, unfair bandwidth allocation to long RTT flows, and
incorrect interpretation of packet loss due to errors. To address these
problems, a number of congestion control protocols have been proposed.
Here we classify and survey a part of these protocols: loss-based (TCP,
HighSpeed TCP, Scalable TCP, etc.), delay-based (TCP Vegas, FAST TCP,
etc.), and router-assisted (XCP, RCP, etc.). Their control structures,
inherent algorithms, and performance characteristics are studied.


Date:     		Friday, 20 January 2006

Time:                   2:00p.m.-4:00p.m.

Venue:                  Room 4502
			lifts 25-26

Committee Members:      Prof. Mounir Hamdi (Supervisor)
			Dr. Brahim Bensaou (Chairperson)
			Dr. Gary Chan
			Dr. Qian Zhang


**** ALL are Welcome ****