The Time-Correlated Update Problem

Recent advances in the fields of sensor networks and mobile robotics have provided the means to place monitoring/sensing equipment in an increasingly wide variety of environments - a significant proportion of which can reasonably be expected to lack traditional network connectivity characteristics. Challenged networks, operating under significant sets of constraints in which disconnected paths and long delays are normal events, have come to be known as Delay/Disruption Tolerant Networks (DTN). Some examples of environments in which DTN techniques may be required include remote or vast domains such as underground, underwater, outer-space, Arctic, and mountainous environments.