Interplay of contact times, fragmentation and coding in DTNs

摘要

Models describing DTNs proposed in the last few years have been focusing on message replication policies able to achieve high delivery probability at the cost of network resources, e.g., message copies. To this respect, the duration of contact events is the physical constraint that dictates how fine a large message should be fragmented into packets in order to match finite contacts duration. The price to pay, indeed, is that the source has to deliver a larger number of packets per message.