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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,...
Delay/Disruption Tolerant Networks (DNTs) enables nodes to communicate by means of asynchronous sending messages without the need for an end-to-end path. In this paper, we study the problem of multicasting in DTNs. Several schemes have been proposed for multicast routing assuming the group of message receivers is known by sender, and the group members do not change during the process of message delivery...
In this paper we address the problem of designing adaptive epidemic-style forwarding mechanisms for message delivery in Delay Tolerant Networks. Our approach is based on a new analytical framework for multi-agent optimization through distributed subgradient methods. We investigate how this framework can be adapted to the considered networking problem and perform a preliminary evaluation, which shows...
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