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Background TCP Data Transfer with Inline Network Measurement
Tomoaki TSUGAWA Go HASEGAWA Masayuki MURATA
Publication
IEICE TRANSACTIONS on Communications
Vol.E89-B
No.8
pp.2152-2160 Publication Date: 2006/08/01 Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.8.2152 Print ISSN: 0916-8516 Type of Manuscript: PAPER Category: Internet Keyword: background data transfer, inline network measurement, congestion control, available bandwidth, TCP (Transmission Control Protocol),
Full Text: PDF(662.5KB)>>
Summary:
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.
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