APPARATUS AND METHOD FOR DATA DELIVERY IN DELAY-TOLERANT NETWORK (DTN)

摘要

A Delay-Tolerant network (DTN) node (12) includes a processor (22) coupled to a memory (32) and adapted to execute a data transfer process for a DTN (1). The processor (22) receives, on the DTN (1), a plurality of bundles (#1-#N) to be transferred to the same destination node (14) (201). Each of a plurality of bundles (#3-#N) includes any respective one of a plurality of data segments obtained by dividing the data of a content. In accordance with the communication status of the DTN (1), the processor (22) does not transfer, to any other node, but deletes some (#5-#N) of the plurality of bundles (#3-#N) or compresses the data size of the payload of some (#5-#N) thereof (203). In this way, for example, the amount of data to be delivered in the DTN can be adjusted in accordance with a local communication status in the DTN.