Gearing up for the 21st century space race
Gearing up for the 21st century space race
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DOI：
10.1145/3286062.3286079
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发表时间：
2018-11
期刊：
影响因子：
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通讯作者：
Debopam Bhattacherjee;Waqar Aqeel;I. N. Bozkurt;A. Aguirre;B. Chandrasekaran;Brighten Godfrey;G. Laughlin;B. Maggs;Ankit Singla
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作者：
Debopam Bhattacherjee;Waqar Aqeel;I. N. Bozkurt;A. Aguirre;B. Chandrasekaran;Brighten Godfrey;G. Laughlin;B. Maggs;Ankit Singla
一场新的空间竞赛即将到来，一些行业参与者正在努力实现基于卫星的互联网连接。虽然卫星网络本身并不是新的，但这些最近的提议旨在实现数量级更高的带宽和更低的延迟，星座计划由数千颗卫星组成。这些不仅仅是遥远的未来计划-第一颗卫星的发射已经开始，大量的计划容量已经售出。因此，至关重要的是，网络研究人员积极参与这一研究领域，而不是错过可能是网络最重要的现代发展之一。在我们朝着这个方向迈出的第一步中，我们发现这种新型的卫星网络可能在许多环境中与当今的ISP竞争，实际上在长距离上提供比目前光纤基础设施更低的延迟。因此，我们阐明了一些独特的挑战，这些网络目前在几乎所有层，从拓扑设计和ISP的经济，路由和拥塞控制。
A new space race is imminent, with several industry players working towards satellite-based Internet connectivity. While satellite networks are not themselves new, these recent proposals are aimed at orders of magnitude higher bandwidth and much lower latency, with constellations planned to comprise thousands of satellites. These are not merely far future plans --- the first satellite launches have already commenced, and substantial planned capacity has already been sold. It is thus critical that networking researchers engage actively with this research space, instead of missing what may be one of the most significant modern developments in networking. In our first steps in this direction, we find that this new breed of satellite networks could potentially compete with today's ISPs in many settings, and in fact offer lower latencies than present fiber infrastructure over long distances. We thus elucidate some of the unique challenges these networks present at virtually all layers, from topology design and ISP economics, to routing and congestion control.