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Anyone know what the downlink bandwidth might be for this system (i.e. not to the user, but to the Internet backbone?) Seems like only a few customers at 1 Gb/
by kbaker 9y ago
Anyone know what the downlink bandwidth might be for this system (i.e. not to the user, but to the Internet backbone?)
Seems like only a few customers at 1 Gb/s could saturate the network pretty quickly. Especially if the coverage area is a few hundred square miles.
- kristofferR 9y ago"Each satellite will provide aggregate downlink capacity of 17 to 23Gbps" https://arstechnica.com/information-technology/2016/11/spacex-plans-worldwide-satellite-internet-with-low-latency-gigabit-speed/ https://arstechnica.com/information-technology/2016/11/space...
- Robotbeat 9y agoThat's just the initial system. And there will be, say, 30 satellites in view at any one time, giving an aggregate of 600 Gbps. At a typical 100:1 over-subscription ratio, they should be capable of serving almost a million customers per region (~500km diameter) at that speed. At more reasonable 10 or 100Mbps, it's on the order of tens of millions of customers in a region. But that's just the initial constellation. SpaceX plans to put 12,000 total satellites up, with the VLEO ones having much higher throughput. Idea is to replace them every 4-6 years with faster throughput.