关键词: 星间网络, 可靠传输, 分段重传, 传输效率

Abstract: Retransmission mechanisms in end-to-end manner and segmentation manner are proposed for reliable data transmission requirement in the satellite network. The performances of retransmission mechanisms are analyzed in all scenarios for single packet and multi-packet reliable transmission respectively. The affection factors are also discussed. The analysis and simulation results show that retransmission mechanism has less influence on single packet transmission, but the segmentation retransmission mechanism is fitter for multi-packet transmission to achieve higher transfer efficiency, especially when the hop number, the packet number, and the packet lost rate are big.

Key words: reliable transmission, segmentation retransmission, transfer efficiency