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In Delay Tolerant Networks (DTNs), broadcasting is an important routing function that supports the distribution of data to all users in the network. Efficient broadcasting in DTNs is a challenging problem due to the lack of continuous network connectivity. In this paper, the authors consider the limited bandwidth scenario for DTN broadcasting. Their scheme aims to provide a ticket-based multiple packet broadcasting protocol for a DTN that follows the human mobility patterns - Levy walks and community-based mobility. Their proposed protocol has two steps: packet selection and relay node selection. Packet selection takes place when two nodes come into contact with each other.
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