Improvement of RTT-fairness in Hybrid TCP congestion control

2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability Pub Date : 2008-09-25 DOI:10.1109/CQR.2009.5137351

Kazumine Ogura, Tomoki Fujikawa, Su Zhou, J. Katto

{"title":"Improvement of RTT-fairness in Hybrid TCP congestion control","authors":"Kazumine Ogura, Tomoki Fujikawa, Su Zhou, J. Katto","doi":"10.1109/CQR.2009.5137351","DOIUrl":null,"url":null,"abstract":"This paper presents TCP-Fusion supporting RTT (Round Trip Time) fairness in addition to throughput efficiency and friendliness to TCP-Reno. When multiple TCP flows having different RTT values compete, more bandwidth is unfairly allocated to the flow having smaller RTT. This means that a user with longer RTT may not be able to obtain sufficient bandwidth by the current methods. On the other hand, recent studies on the TCP congestion control to achieve RTT fairness and throughput efficiency are evolving actively. An example for RTT fairness is TCP-Libra and an example for throughput efficiency is Hybrid TCP congestion control. This paper focuses on Hybrid TCP (exploiting residual link capacity when TCP-Reno drops its rate) and improves its RTT fairness by incorporating the ideas of TCP-Libra (congestion window increase in proportion to square of RTT) to its loss mode. Experiments are carried out to validate the proposed method and much better performances in RTT fairness and throughput are provided against conventional methods.","PeriodicalId":186033,"journal":{"name":"2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability","volume":"30 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CQR.2009.5137351","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 3

Abstract

This paper presents TCP-Fusion supporting RTT (Round Trip Time) fairness in addition to throughput efficiency and friendliness to TCP-Reno. When multiple TCP flows having different RTT values compete, more bandwidth is unfairly allocated to the flow having smaller RTT. This means that a user with longer RTT may not be able to obtain sufficient bandwidth by the current methods. On the other hand, recent studies on the TCP congestion control to achieve RTT fairness and throughput efficiency are evolving actively. An example for RTT fairness is TCP-Libra and an example for throughput efficiency is Hybrid TCP congestion control. This paper focuses on Hybrid TCP (exploiting residual link capacity when TCP-Reno drops its rate) and improves its RTT fairness by incorporating the ideas of TCP-Libra (congestion window increase in proportion to square of RTT) to its loss mode. Experiments are carried out to validate the proposed method and much better performances in RTT fairness and throughput are provided against conventional methods.

查看原文本刊更多论文

混合TCP拥塞控制中rtt公平性的改进

本文提出了支持RTT(往返时间)公平性的TCP-Fusion，以及吞吐量效率和对TCP-Reno的友好性。当具有不同RTT值的多个TCP流竞争时，更多的带宽被不公平地分配给具有较小RTT的流。这意味着具有较长RTT的用户可能无法通过当前方法获得足够的带宽。另一方面，近年来对TCP拥塞控制以实现RTT公平性和吞吐量效率的研究也在积极发展。RTT公平性的一个例子是TCP- libra，吞吐量效率的一个例子是Hybrid TCP拥塞控制。本文主要研究混合TCP(利用TCP- reno降低其速率时的剩余链路容量)，并通过将TCP- libra(拥塞窗口与RTT的平方成比例增加)的思想纳入其损失模式来提高其RTT公平性。实验结果表明，该方法在RTT公平性和吞吐量方面都优于传统方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability

自引率

0.00%

发文量