一种以稳定性为首要目标的Starlink上运行TCP的方法
A Stability-first Approach to Running TCP over Starlink
AI总结：
针对LEO卫星星座下TCP连接因路由频繁变动性能受限的问题，本文提出多种以路由稳定性为核心的算法，相比现有最短路径优化方案大幅提升了端到端通信性能，为轨道路由与传输控制的协同设计提供基础。
摘要：
如果由低地球轨道（LEO）卫星星座提供中转，地球上两点之间的端到端连接模式具有高度波动性。这一特性的根源在于LEO卫星必须以极高的速度相对于地球表面运行。尽管端到端路由变化在固定地面应用中属于罕见事件，但对于在LEO星座及巨型星座上运行的面向连接的服务而言，路由变化是影响性能的主导因素。本文讨论了星座上的TCP受重路由需求的影响方式，以及轨道路由选择算法如何影响端到端通信性能。与主要优化瞬时最短路由（即最低延迟）的现有技术不同，我们提出了若干以路由稳定性和存续时长为核心的算法。我们证明，这种关注点的转变可大幅提升端到端通信性能，并且我们在实证研究中借鉴Starlink星座的特性，讨论了典型类TCP实现的特殊效应。所提出的算法体系为协同设计合适的轨道路由选择算法与定制化传输控制算法提供了基础。
英文摘要：
The end-to-end connectivity patterns between two points on Earth are highly volatile if mediated via a Low-Earth orbit (LEO) satellite constellation. This is rooted in the enormous speeds at which satellites in LEO must travel relative to the Earth's surface. While changes in end-to-end routes are rare events in stationary and terrestrial applications, they are a dominating factor for connection-oriented services running over LEO constellations and mega-constellations. This paper discusses how TCP-over-constellations is affected by the need for rerouting and how orbital route selection algorithms impact the end-to-end performance of communication. In contrast to the state of the art that primarily optimizes for instantaneous shortest routes (i.e. lowest delay), we propose several algorithms that have route stability and longevity in their focus. We show that this shift in focus comes with vastly improved end-to-end communication performance, and we discuss peculiar effects of the typical TCP-like implementations, taking inspiration from the Starlink constellation in our empirical investigations. The spectrum of algorithms proposed provides a basis for co-designing suitable orbital route selection algorithms and tailored transport control algorithms.
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。
