3 ms·

Does anyone know more about the architecture of this space radio network? For example does it use tcp/ip on top over radio or is it packet switched as with amat

• vbtemp 14y ago
  Generally they use the CCSDS specifications, CCSDS is an international body with the space agencies of each major country contributing. Google for CCSDS, they have a bunch of open standards. Space networks really aren't quite at the level of fully mature, layered, multi-hop packetized networks... It's a Hard Problem. Basically, TCP/IP doesn't scale to meet the constraints of deep-space networks (high latency, asymmetric data rates, intermittent connectivity). It just breaks down. That's why there's a lot of active research in DTN (delay/disruption tolerant networking and ad-hoc networking protocols). ION (Interplanetary Overlay Network) is the JPL implementation of the DTN protocols, and has been flown in a demonstration capacity on some extended-mission/end-of-life Deep Space missions. Much of it has been open sourced at this point.
• gchang 14y ago
  Here's some publicly available technical information about how the DSN works: http://eis.jpl.nasa.gov/deepspace/dsndocs/810-005/ http://eis.jpl.nasa.gov/deepspace/dsndocs/810-005/
  • Irishsteve 14y ago
    Up in Sweden they have DTN's for reindeer farmers. A helicopter which brings food supplies acts as the data transfer relay. DTN book for anyone interested in the area. http://www.amazon.com/dp/1596930632 http://www.amazon.com/dp/1596930632
• noselasd 14y ago
  Here's the protocol stacks http://public.ccsds.org/publications/default.aspx http://public.ccsds.org/publications/default.aspx , here's source code for some higher layers https://ion.ocp.ohiou.edu/ https://ion.ocp.ohiou.edu/