CLC number: TP393
On-line Access:
Received: 2005-10-11
Revision Accepted: 2005-12-28
Crosschecked: 0000-00-00
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Pan Xue-zeng, Su Fan-jun, Lü Yong, Ping Ling-di. CW-HSTCP: Fair TCP in high-speed networks[J]. Journal of Zhejiang University Science A, 2006, 7(2): 172-178.
@article{title="CW-HSTCP: Fair TCP in high-speed networks",
author="Pan Xue-zeng, Su Fan-jun, Lü Yong, Ping Ling-di",
journal="Journal of Zhejiang University Science A",
volume="7",
number="2",
pages="172-178",
year="2006",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2006.A0172"
}
%0 Journal Article
%T CW-HSTCP: Fair TCP in high-speed networks
%A Pan Xue-zeng
%A Su Fan-jun
%A Lü
%A Yong
%A Ping Ling-di
%J Journal of Zhejiang University SCIENCE A
%V 7
%N 2
%P 172-178
%@ 1673-565X
%D 2006
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.A0172
TY - JOUR
T1 - CW-HSTCP: Fair TCP in high-speed networks
A1 - Pan Xue-zeng
A1 - Su Fan-jun
A1 - Lü
A1 - Yong
A1 - Ping Ling-di
J0 - Journal of Zhejiang University Science A
VL - 7
IS - 2
SP - 172
EP - 178
%@ 1673-565X
Y1 - 2006
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2006.A0172
Abstract: The congestion control mechanisms of the current standard TCP constrain the congestion windows that can be achieved by TCP in high-speed networks, which leads to low link utilization. HSTCP is one solution to solve this problem by modifying the congestion control mechanism to have the characteristics of TCP friendliness in high loss rate environment and high scalability in low loss rate environment. However, experiments revealed that HSTCP has severe RTT unfairness. After analyzing the RTT unfairness in HSTCP with a model, we proposed CW-HSTCP, which added a fair factor to decrease the difference of congestion window caused by different RTT. Fair factor of long RTT flows can cause a sharp window increment that is easy to cause a bursty traffic, so a method called block-pacing was adopted. Simulation results showed that our new proposal could alleviate the RTT unfairness while keeping advantages of HSTCP.
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