In conventional network environments, routing implies a stable world in which the vision of a next hop is consistent with the vision a forwarding node, so that a packet can progress, for example, in a greedy fashion that reduces a remaining cost at each hop, to a destination. However, in the world of mobile delay tolerant networking (DTN), nodes can move in any direction, nodes may forward packets when they meet a peer, and may move in between such actions. Thus, the relative position of nodes can change between meeting such that it can become difficult to compute a physical path based on a position of all nodes. Techniques presented herein propose a foundational "routing to the future" model for mobile DTN nodes that may enable predictable rendezvous among such nodes. During operation, a router can, for example, compute a route along rendezvous points while optimizing for the total latency, energy, and chances of delivery based on the probability of the rendezvous to effectively occur.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.