关键词: 卫星网络, QUIC, 多路径传输, 性能增强代理, 容延容断网络 ,

Abstract: Satellite network has attracted extensive attention from academia and industry due to its characteristics of wide coverage, high bandwidth, strong survivability, natural broadcast and so on. However, due to the characteristics of long propagation delay, high bit error rate and asymmetric bandwidth, the traditional TCP protocol has poor performance in satellite network. In recent years, with the rapid development and large-scale deployment of the giant constellations represented by "Starlink", the satellite network has shown the characteristics of high dynamics, which poses a severe challenge to the high-performance transmission of satellite constellation network. This paper summarizes the research progress of new technologies for satellite network transport protocol optimization that have emerged in recent years. Especially, the new technologies represented by multi-path transmission, QUIC, intelligent transmission optimization are deeply compared and analyzed.

Key words: satellite network, QUIC, multipath transmission, performance enhancement proxies, delay/disruption tolerant network