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The Current State and Future of Space Internet
the Space generation Perspective 33rd Space Symposium, Colorado Springs
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Introduction Working group purpose:
Investigate possibilities and risks of using satellites, drones, and high altitude balloons to provide widespread access to internet - Internet increasingly viewed as a basic commodity - Non-traditional space companies eyeing the opportunity to offer "sky-fi” - New potential technological ideas - Emerging policy implications 201! Almost 4 billion people left without internet access – o3b, oneweb objective
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Background - Primary method of global connectivity historically delivered through deep-sea fibre-optic links - Extensive network connecting continents - Local networks established through wi-fi, cellular and satellite communications - Almost 4 billion people left without internet access
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Global Connectivity Challenges
- Infrastructure costs are strong barrier to connectivity compounded - Expense of connecting widely dispersed populations over large areas - National infrastructure underdeveloped, unable to fulfil demand - Further made difficult by lack of required adjacent infrastructure, such as electricity - Issues of demand given lack of basic services
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Context - Companies like Google and Facebook working to use drones and balloons to provide internet access - SpaceX and OneWeb propose to do the same with satellites - These approaches have raised technical, regulatory and policy questions Technical/policy challenges? e.g. OneWeb claims of 100x performance improvement while expecting 100x reduction in cost! Regulatory issues e.g. market access, global licensing needs
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Technologies and Network Approaches
The solutions to global networking challenges likely combine multiple technologies Technologies RF - Tens of Giga-Hertz Optical - Tens of Tera-Hertz - EDRS Network Approaches - Discrete Morse Theory - Topological Data Analysis - Quantum Satellite Networks (QKD) Talk about challenges RF: finite resource, spectrum interference, rain attenuation at higher frequencies Optical – need precise pointing
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Balloons – Project Loon
- Portable, easy to deploy Inexpensive, but frequently replaced - Short range - Many individual nodes - Increases networking complexity
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Drones – Facebook Aquila
- Rapid response - Emergency services usage - More expensive than balloons - Many nodes → complicates networking
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Satellites – LEO/MEO ConstellAtions
- Long range - Large coverage area - Global relay network - High initial costs - R&D and launch availability bottleneck
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Recommendations and Conclusions
Conduct market studies to identify key demand areas Institute a phased approach of network and ensure technical/commercial viability Let governments serve as anchor users and help expedite regulatory processes Provide future connectivity to ISPs to ensure commercial sustainability
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THANK YOU! Authors: Laszlo Bacsardi – University of West Hungary Roger Birkeland – Norwegian University of Science and Technology Andreas Hornig – University of Stuttgart Brandon Morrison – Durham University Mansoor Shar – International Space University Yevgeny Tsodikovich – Tel Aviv University
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