TCP With Network Coding Enhanced in Bi-Directional Loss Tolerance

Transmission Control Protocol with Network Coding (TCP/NC) and its variants were developed to improve the goodput performance of TCP protocol in lossy networks. However, no TCP/NC enhancement work can get a high goodput performance in bi-directional packet loss environments, especially with a high d...

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Bibliographic Details
Published in:IEEE communications letters 2020-03, Vol.24 (3), p.520-524
Main Authors: Ha, Nguyen Viet, Nguyen, Tran T. T., Tsuru, Masato
Format: Article
Language:English
Subjects:
ACK loss
bi-directional loss
Bidirectional control
burstiness loss
Channel estimation
Coding
constrained-node networks
Encoding
Network coding
ns-3
Packet loss
TCP (protocol)
TCP/NC
Urban areas
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Summary:Transmission Control Protocol with Network Coding (TCP/NC) and its variants were developed to improve the goodput performance of TCP protocol in lossy networks. However, no TCP/NC enhancement work can get a high goodput performance in bi-directional packet loss environments, especially with a high degree and/or burst loss of ACK packets. Therefore, we propose a new scheme called TCP/NC with Bi-directional Loss Tolerance (TCP/NCwBLT) to maintain a goodput in a wide range of bi-directional loss environments by combining three techniques of "ACK accumulation", "ACK retransmission", and "Duplicate ACK generator" at the source and/or the sink sides. The simulation results on ns-3 show that TCP/NCwBLT always outperforms the various TCPs and a recent variant of TCP/NC when packet losses happen in both directions, and its advantage significantly increases at a high ACK loss rate.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2019.2961096