Mobility

Regional Token Based Routing for DTNs

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Executive Summary

In Delay and Disruption Tolerant Networks (DTNs), there are no stable end-to-end paths because the connectivity of nodes is frequently disrupted by their mobility, power saving or other reasons. Nevertheless nodes can communicate each other by a store-and-forward paradigm if there are end-to-end paths on the union of network snapshots over time. Many previous studies have proposed routing protocols adopting this paradigm. The authors propose Regional Token Based Routing (RTBR) that reflect mobility patterns of real users. The real networks may consist of several sub networks (called "Regions") and have mobile nodes that move within regions or between regions. RTBR exploits node mobility and region information.

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