During disaster situations such as Hurricane Katrina, citizens need to communicate to locate critical resources, find loved ones, etc. The current primary infrastructures (cellular networks, internet) do not satisfy these needs well when there is inconsistent power. The recently initiated disaster response communications project is approaching this problem with research into three technologies: hand-held devices capable of ad-hoc peer-to-peer communications, automobile-based store-carry-forward gateways to relay messages and a network architecture based on Delay/Disruption Tolerant Networking (DTN).

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