A Retransmission Method for Improving Transmission Reliability in One-way Transmission
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One-way(unidirectional) Security Gateway recently emerged for preventing cyber-attack with high performance in ICS. One-way Security Gateway is connected only one-way, reverse direction is even physically blocked. In one-way transmission, since it is basically impossible to send ACK or Reply from receiving side to transmitting side, transmitting side cannot know whether the transmission is successful or not. Therefore, the transmission reliability of data has a big concern in One-way transmission. In this paper, we discuss methods of improving the transmission reliability in one-way transmission.
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