Background TCP data transfer with inline network measurement

Tomoaki Tsugawa, Go Hasegawa, Masayuki Murata

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


In the present paper, ImTCP-bg, a new background TCP data transfer mechanism that uses an inline network measurement technique, is proposed. ImTCP-bg sets the upper limit of the congestion window size of the sender TCP based on the results of the inline network measurement, which measures the available bandwidth of the network path between the sender and receiver hosts. ImTCP-bg can provide background data transfer without affecting the foreground traffic, whereas previous methods cannot avoid network congestion. ImTCP-bg also employs an enhanced RTT-based mechanism so that ImTCP-bg can detect and resolve network congestion, even when reliable measurement results cannot be obtained. The performance of ImTCP-bg is investigated through simulations, and the effectiveness of ImTCP-bg in terms of the degree of interference with foreground traffic and the link bandwidth utilization is also investigated.

Original languageEnglish
Pages (from-to)2152-2160
Number of pages9
JournalIEICE Transactions on Communications
Issue number8
Publication statusPublished - 2006 Aug


  • Available bandwidth
  • Background data transfer
  • Congestion control
  • Inline network measurement
  • TCP (Transmission Control Protocol)


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