|Title:||Finishing Flows Faster with A Quick congestion Control Protocol (QCP)
|Contributor(s):||Xia, Pengye; et. al.
|Subject(s):||Faster download, efficient sharing, congestion control, fairness
|Abstract:||The transmission control protocol (TCP) is the major trans-
port protocol in the Internet. TCP and its variants have the
drawback of not accurately knowing rate share of flows at
bottleneck links. Some protocols proposed to address these
drawbacks are not fair to short flows, which are the majority
of the Internet traffic. Other protocols result in high queue
length and packet drops which translate into a high average
flow completion time (AFCT).
In this paper we present the design and analysis of a Quick
congestion Control Protocol (QCP). QCP can quickly give
flows their fair share rates hence allow them to quickly fin-
ish. Unlike existing schemes, QCP uses an accurate for-
mula to calculate the number of flows sharing a network
link. This enables QCP to get fair share rates to flows with-
out over or under-utilization of bottleneck link capacities.
We also present an efficient sharing mechanism which QCP
uses to assign capacity which is not used by some flows bot-
tlenecked elsewhere to other flows which need the capacity.
We show how QCP can be implemented by extending the
emerging OpenFlow architecture. Simulation results con-
firm the design goals of QCP in achieving reduced AFCT
(by upto 30%).
|Peer Reviewed:||not peer reviewed
|Date Available in IDEALS:||2013-01-19