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Journal of Zhejiang University SCIENCE A 2004 Vol.5 No.11 P.1361-1366


An adaptive mechanism to guarantee the bandwidth fairness of TCP flows

Author(s):  ZHANG Shun-liang, YE Cheng-qing

Affiliation(s):  College of Computer Science & Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   ycq@mail.hz.zj.cn

Key Words:  Bandwidth allocation, Fairness guarantee, Congestion control, RTT, Adaptive method

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ZHANG Shun-liang, YE Cheng-qing. An adaptive mechanism to guarantee the bandwidth fairness of TCP flows[J]. Journal of Zhejiang University Science A, 2004, 5(11): 1361-1366.

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%DOI 10.1631/jzus.2004.1361

T1 - An adaptive mechanism to guarantee the bandwidth fairness of TCP flows
A1 - ZHANG Shun-liang
A1 - YE Cheng-qing
J0 - Journal of Zhejiang University Science A
VL - 5
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SP - 1361
EP - 1366
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2004.1361

End-to-end TCP (transmission control protocol) congestion control can cause unfairness among multiple TCP connections with different RTT (Round Trip Time). The throughput of TCP connection is inversely proportional to its RTT. To resolve this problem, researchers have proposed many methods. The existing proposals for RTT-aware conditioner work well when congestion level is low. However, they over-protect long RTT flows and starve short RTT flows when congestion level is high. Due to this reason, an improved method based on adaptive thought is proposed. According to the congestion level of networks, the mechanism can adaptively adjust the degree of the protection to long RTT flows. Extensive simulation experiments showed that the proposed mechanism can guarantee the bandwidth fairness of TCP flows effectively and outperforms the existing methods.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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