Adaptive bandwidth control to handle long-duration large flows

Ryoichi Kawahara*, Tatsuya Mori, Noriaki Kamiyama, Shigeaki Harada, Haruhisa Hasegawa

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We describe a method of adaptively controlling bandwidth allocation to flows for reducing the file transfer time of short flows without decreasing throughput of long-duration large flows. According to the rapid increase in Internet traffic volume, effective traffic engineering is increasingly required. Specifically, the traffic of long-duration large flows due to the use of peer-to-peer applications, for example, is a problem. Most conventional QoS controls allocate a fair-share bandwidth to each flow regardless of its duration. Thus, a long-duration large flow (such as a P2P flow) is allocated the same bandwidth as a short-duration flow (such as data from a Web page) in which the user is more sensitive to response time, i.e., file transfer time. As a result, long-duration large flows consume bandwidth over a long period and increase response times of short-duration flows, and conventional QoS methods do nothing to prevent this. In this paper, we therefore investigate a different approach, that is, a new form of bandwidth control that enables us to achieve better performance when handling short-duration flows while maintaining performance when handling long-duration flows. The basic idea is to tag packets of long-duration large flows according to traffic conditions and to give temporarily higher priority to nontagged packets during network congestion. We also show the effectiveness of our method through simulation.

Original languageEnglish
Title of host publicationProceedings - 2009 IEEE International Conference on Communications, ICC 2009
Publication statusPublished - 2009
Externally publishedYes
Event2009 IEEE International Conference on Communications, ICC 2009 - Dresden, Germany
Duration: 2009 Jun 142009 Jun 18

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486


Conference2009 IEEE International Conference on Communications, ICC 2009

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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