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I don't understand how this network will work in practise. I can broadly understand the physical layer. There will be a big increase in bandwidth over other sys
by barbegal 9y ago
I don't understand how this network will work in practise. I can broadly understand the physical layer. There will be a big increase in bandwidth over other systems. More satellites and higher frequencies means more data in the system overall.
The link layer and the routing layer however are going to be key to how this system will deliver at such a large scale and with low latency. Negotiating links and routing is currently done with huge, power hungry switches in giant data centres. And those only have to deal with relatively static routes, with a satellite constellation, routes and constantly changing.
My best guess is that for the most part, traffic will go via intermediaries rather than from handheld devices. Having fixed base stations that communicate with the satellites means fewer links to maintain and easier negotiation if they maintain a fixed location.
Does anyone have any more technical information beyond what is provided by a paper by Samsung [1] on a similar space network?
[1] https://arxiv.org/ftp/arxiv/papers/1508/1508.02383.pdf https://arxiv.org/ftp/arxiv/papers/1508/1508.02383.pdf
- doikor 9y agoThis isn't meant for handheld devices. Musk has mostly been talking about pizza box sized dish.
- stcredzero 9y agoHow practical would it be for radar stealthed balloons to act as floating cell towers? I wonder if such devices could be used to provide internet to regions under totalitarian control?
- hobofan 9y agoI think a receiver the size of a pizza box can still use the traditional pragmatic approach of hiding it on a rooftop.
- aaomidi 9y agoYou can still track signals originating from rooftops using drones and then prosecuting the people doing that for spying. Iran is one of those countries that really don't like two way satellite internet.
- hobofan 9y agoPredator drones, or quadrocopter drones? I thought that this could be a possibility, but has any government actually gone that far yet? This sounds a level too dystopian for the current time.