| An adaptive mechanism to guarantee the bandwidth fairness of TCP flows |
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| 作者姓名： | 张顺亮 叶澄清 |
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| 摘 要： | INTRODUCTION In current Internet, most of traffic is generatedby traditional data transfer applications such asHTTP (hyper text transmission protocol), FTP (filetransmission protocol), or SMTP (small mailtransfer protocol). Usually, these elastic applica-tions are not sensitive to the delivery time of indi-vidual packet, but rather to the total transfer time ofthe data. They often use TCP, which provides re-liable end-to-end control over the “best-effort”service of IP. Beca…
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An adaptive mechanism to guarantee the bandwidth fairness of TCP flows |
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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,2004(11). |
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| Authors: | ZHANG Shun-liang YE Cheng-qing ? |
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| Abstract: | 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. |
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| Keywords: | Bandwidth allocation Fairness guarantee Congestion control RTT Adaptive method |
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