Distributed aGPS

Assisted GPS supplies satellite almanac and ephemeris data and an accurate time signal via the network to ground stations that have poor reception of satellites, so that they do not have to wait up to 12.5 minutes (or longer) to receive that information from the satellites themselves.

The Serval Mesh (app for Android) could use Rhizome to publish this information from nodes with good reception and a recent GPS almanac and ephemeris acquisition, so that all nearby nodes can perform aGPS.

The Rhizome bounding circle and Rhizome lifetime would be ideal mechanisms to prevent the distributed aGPS bundles from overwhelming the Mesh network.


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