Last week I attended the second seminar on Delay and Disruption-Tolerant Networking at Schloss Dagstuhl. Together with Dirk Kutscher I gave a presentation on our current research on Publish/Subscribe Multicasting in DTNs.
The abstract of the talk was:
We discuss the problem of controlling resource usage for multicast content distribution in DTNs. Starting from epidemic routing as a bottom-line, we evaluate different trade-offs for the key-metrics reliability (delivery ratio), immediacy (delay), and resource consumption (usage of persistent storage and links). Based on preliminary simulation results, we show what effect different choices for prioritization, filtering, and propagation of subscriptions (i.e. group membership information) have on the key-metrics.The slides are here.With the talk we hope to initiate a discussion on how multicast can be used effectively in resource-constrained environments.
