探索用于卫星通信的QUIC与HTTP/3代理方案
Exploring Proxying QUIC and HTTP/3 for Satellite Communication
AI总结：
针对QUIC加密导致传统卫星PEP无法优化传输的问题，本文搭建卫星仿真测试床对比相关协议性能，发现QUIC/HTTP3搭配PEP可显著提升慢启动速度与页面加载效率，为卫星通信下QUIC代理研究提供依据。
摘要：
低地球轨道卫星正逐步普及以提供互联网连接，补充了历史悠久的地球静止轨道卫星的服务。与此同时，QUIC已被开发为新型网络传输协议。由于QUIC流量是完全加密的，过去对卫星互联网性能至关重要的性能增强代理（PEP）等中间设备，无法再干预和优化传输连接。本文提出了一个卫星仿真测试床，并利用它对比了有无基础PEP功能时QUIC与TCP、以及HTTP/3与HTTP/1.1的性能。通过评估随时间变化的有效吞吐量，我们发现与无PEP的QUIC相比，搭载PEP的QUIC达到慢启动阈值的速度最多快2秒。此外，我们发现在多种网络性能场景下，HTTP/3和HTTP/3-PEP的表现均优于HTTP/1.1和HTTP/1.1-PEP，其中在极端场景下，HTTP/3-PEP的页面加载时间比原生HTTP/3缩短了7秒以上。因此，我们的研究结果表明，这些性能提升足以支撑对QUIC场景下PEP应用的进一步探索。
英文摘要：
Low-Earth Orbit satellites have gained momentum to provide Internet connectivity, augmenting those in the long-established geostationary orbits. At the same time, QUIC has been developed as the new transport protocol for the web. While QUIC traffic is fully encrypted, intermediaries such as performance enhancing proxies (PEPs) - in the past essential for Internet over satellite performance - can no longer tamper with and optimize transport connections. In this paper, we present a satellite emulation testbed and use it to compare QUIC and TCP as well as HTTP/3 and HTTP/1.1 with and without minimal PEP functionality. Evaluating goodput over time, we find that the slow start threshold is reached up to 2s faster for QUIC PEP in comparison to QUIC Non-PEP. Moreover, we find that HTTP/3 and HTTP/3-PEP outperform HTTP/1.1 and HTTP/1.1-PEP in multiple web performance scenarios, where HTTP/3-PEP improves over HTTP/3 for Page Load Time by over 7s in edge cases. Hence, our findings hint that these performance gains may warrant exploring PEPs for QUIC.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
