Suppressing redundant TCP retransmissions in wireless mesh networks

Shuhei Aketa, Eiji Takimoto, Yuto Otsuki, Shoichi Saito, Eric W. Cooper, Koichi Mouri

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抜粋

The link quality of wireless mesh networks is variable, hence dynamic route modifications based on changes in link quality can improve communication performance. A drawback of the route modification is the occurrence of order errors, which triggers retransmission control in TCP communication. However, retransmission is unnecessary for order errors in route modification as retransmission is redundant. In this study, we propose a method that discriminates the causes of order errors on the basis of their TCP sequence numbers and reception intervals. We also propose a method that suppresses the redundant retransmissions caused by order errors. When the determination method infers that an order error is due to a route modification, the suppression method retains the acknowledgement (ACK) packet so as not to activate the retransmission control of the TCP sender. Even if the determination method makes a misjudgment, its impact is minimized by limiting the waiting time. The results evaluated in Linux show a 50% reduction of retransmitted packets in Reno and CUBIC and a 90% reduction in selective acknowledgement (SACK) Reno and SACK CUBIC.

元の言語英語
ホスト出版物のタイトルIMECS 2015 - International MultiConference of Engineers and Computer Scientists 2015
出版者Newswood Limited
ページ556-561
ページ数6
2
ISBN(電子版)9789881925398
出版物ステータス出版済み - 1 1 2015
外部発表Yes
イベントInternational MultiConference of Engineers and Computer Scientists 2015, IMECS 2015 - Tsimshatsui, Kowloon, 香港
継続期間: 3 18 20153 20 2015

その他

その他International MultiConference of Engineers and Computer Scientists 2015, IMECS 2015
香港
Tsimshatsui, Kowloon
期間3/18/153/20/15

All Science Journal Classification (ASJC) codes

  • Computer Science (miscellaneous)

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  • これを引用

    Aketa, S., Takimoto, E., Otsuki, Y., Saito, S., Cooper, E. W., & Mouri, K. (2015). Suppressing redundant TCP retransmissions in wireless mesh networks. : IMECS 2015 - International MultiConference of Engineers and Computer Scientists 2015 (巻 2, pp. 556-561). Newswood Limited.