摘要
针对星间网络特点和数据可靠传输要求,提出分段重传和端-端重传两种重传机制,重点对星间网络多跳传输场景下,单包和多包可靠传输在两种重传机制的性能表现和影响条件进行分析.分析和仿真结果表明,重传机制对单包传输影响不大,而分段重传机制更适合于多包传输,特别是在跳数、包数和丢包率较大时,能达到较高的传输效率.
Retransmission mechanisms in endtoend manner and segmentation manner are proposed for reliable data transmission requirement in the satellite network. The performances of retransmission mecha nisms are analyzed in all scenarios for single packet and multipacket 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 mecha nism is fitter for multipacket transmission to achieve higher transfer efficiency, especially when the hop number, the packet number, and the packet lost rate are big.
出处
《空间控制技术与应用》
2013年第6期49-52,共4页
Aerospace Control and Application
基金
国家高技术研究发展计划(863)资助项目(2012AA050908)
关键词
星间网络
可靠传输
分段重传
传输效率
satellite network
reliable transmission
segmentation retransmission
transfer efficiency
