Distributed Network Scheduling
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Abstract Distributed Network Scheduling is the
scheduling of future communications of a network by nodes
in the network. This report details software for doing this
onboard spacecraft in a remote network. While prior work
on distributed scheduling has been applied to remote
spacecraft networks, the software reported here focuses on
modeling communication activities in greater detail and
including quality of service constraints. Our main results
are based on a Mars network of spacecraft and include
identifying a maximum opportunity of improving traverse
exploration rate by a factor of three; a simulation showing
reduction in one-way delivery times from a rover to Earth
from as much as 5 to 1.5 hours; simulated response to
unexpected events averaging under an hour onboard; and
ground schedule generation ranging from seconds to 50
minutes for 15 to 100 communication goals.
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