Efficient Adaptive Routing in Delay Tolerant Networks

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Executive Summary

Conventional routing algorithms in Mobile Ad hoc NETworks (MANETs), i.e., multi-hop forwarding, assume the existence of contemporaneous source-destination paths and are not scalable to large networks. On the other hand, in Delay Tolerant Networks (DTNs), routing protocols use the mobility assisted, store-carry-forward paradigm which allows delivery among disconnected network components. Adaptive routing, which combines multi-hop and mobility-assisted routing protocols, is of practical value: it allows efficient multi-hop forwarding while providing the flexibility to deliver messages among disconnected network components.

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