Abstract
According to previous studies, the UDLs (user data links) or ISLs (intersatellite links) switch and failure can result in the packet reordering in Low Earth Orbit (LEO) satellite networks. The packet reordering can severely deteriorate the performance of transmission in LEO satellite networks, especially at very high levels of packet reordering. In order to improve the TCP (Transmission Control Protocol) performance in LEO satellite networks, this paper proposes a modified TCP variant named TCP-D-SACK, which is based on the TCP-SACK. Our results indicate that the new TCP variant can improve the throughput.
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