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In delay-tolerant networks where connectivity between nodes is intermittent, replication-based delivery mechanisms are often employed to deliver messages in a store-carry-forward manner instead of end-to-end delivery techniques that are mainly used in traditional computer networks and Mobile Ad-hoc NETworks. However, multicasting with replication-based methodologies can induce considerable message traffic and longer delivery delay time, thereby being vulnerable upon system performance. This paper exploits the potential of network coding to design an efficient network-coding multicast mechanism in delay-tolerant networks.
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