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Redundancy control and duplicate ACK suppression methods for TCP with FEC

Packet losses significantly degrade TCP performance in high latency networks. To improve TCP performance in such networks, we proposed two methods to suppress the return of duplicate ACKs and to control minimum redundancy because FEC technology cannot work effectively when simply applied to TCP operation. Simulation evaluations show that the proposed methods enable higher throughput than the conventional methods, especially in high latency environments. In our future work, we will consider a scheme to more appropriately determine the appropriate redundancy level for network conditions and to more effectively recover lost packets in a real environment, such as where burst packet losses occur.