3 ms·
I was just looking at Iridium and they seem to have very low latency of around 40ms roundtrip [0] but very small throughput. If SpaceX (or whoever else) can add
by doh 9y ago
I was just looking at Iridium and they seem to have very low latency of around 40ms roundtrip [0] but very small throughput. If SpaceX (or whoever else) can address the latter, then 40ms will challenge any ISP. If you combine this with the adoption of new protocols like HTTP/2, the user experience will be definitely comparable.
[0] https://en.wikipedia.org/wiki/Satellite_Internet_access#Medium_and_Low_Earth_Orbits https://en.wikipedia.org/wiki/Satellite_Internet_access#Medi...
- walrus01 9y agoIn real world practice Iridium's current satellites (not the next generation) have latency from 700ms to 1400ms to the gateway. It's also 2400 baud for data, something like 2400baud+1200bps of FEC for voice. Actually kind of amazing that they can fit intelligible voice through that bitrate with voice codec technology that was finalized 19 years ago. The raw RF latency of Iridium in its present state does not correspond with the network topology at layers 2 and 3.