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    Network Coded TCP (CTCP) Performance over Satellite Networks


    Cloud, Jason and Leith, Douglas J. and Medard, Muriel (2014) Network Coded TCP (CTCP) Performance over Satellite Networks. In: SPACOMM 2014: The Sixth International Conference on Advances in Satellite and Space Communications, 23-27 February 2014, Nice, France.

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    Abstract

    We show preliminary results for the performance of Network Coded TCP (CTCP) over large latency networks. While CTCP performs very well in networks with relatively short RTT, the slow-start mechanism currently employed does not adequately fill the available bandwidth when the RTT is large. Regardless, we show that CTCP still outperforms current TCP variants (i.e., Cubic TCP and Hybla TCP) for high packet loss rates (e.g., > 2.5%). We then explore the possibility of a modified congestion control mechanism based off of H-TCP that opens the congestion window quickly to overcome the challenges of large latency networks. Preliminary results are provided that show the combination of network coding with an appropriate congestion control algorithm can provide gains on the order of 20 times that of existing TCP variants. Finally, we provide a discussion of the future work needed to increase CTCP’s performance in these networks.

    Item Type: Conference or Workshop Item (Paper)
    Additional Information: Paper accepted at SPACOMM 2014
    Keywords: Network Coding; TCP; High Delay; Satellite Networks;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 5953
    Depositing User: Professsor Douglas Leith
    Date Deposited: 11 Mar 2015 17:00
    Refereed: Yes
    URI:

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