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In this paper, we sought to understand the reasons causing failures and delays of message delivery in Delay Tolerant Networks (DTN), and to use this understanding for improving the network. By studying two real-world datasets, we found that node isolation is prevalent, which largely accounts for the inefficiencies in DTN's message delivery. In addition, by analyzing nodes' contact-location relationship,...
The development of delay tolerant networks (DTN) has attracted significant attention in the networking research community. In this paper, we investigate a new type of delay tolerant network - homing pigeon based DTN (HoP-DTN) system. In HoP-DTN, each node owns multiple dedicated messengers (called pigeons), and each pigeon will take a round trip starting from its home, through the destination nodes...
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