This paper presents an efficient hub‐based message forwarding scheme for people‐centric DTN, wherein hubs (i.e. nodes with high degree distribution) are utilized as message relays. This scheme reduces redundant message transmissions without penalizing delivery ratio, since hubs collectively form a virtual data conduit which reaches most of the nodes. Further, in order to utilize bandwidth efficiently, this approach leverages linear network coding for exchanging messages among hubs.
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Ahmed et al. (2011) studied this question.
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