We show preliminary results for the performance of Network Coded TCP (CTCP)over large latency networks. While CTCP performs very well in networks withrelatively short RTT, the slow-start mechanism currently employed does notadequately fill the available bandwidth when the RTT is large. Regardless, weshow that CTCP still outperforms current TCP variants (i.e., Cubic TCP andHybla TCP) for high packet loss rates (e.g., >2.5%). We then explore thepossibility of a modified congestion control mechanism based off of H-TCP thatopens the congestion window quickly to overcome the challenges of large latencynetworks. Preliminary results are provided that show the combination of networkcoding with an appropriate congestion control algorithm can provide gains onthe order of 20 times that of existing TCP variants. Finally, we provide adiscussion of the future work needed to increase CTCP's performance in thesenetworks.
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