Proposal of service framework for information sharing based on delay tolerant networks

This paper proposes a service framework to realize a wide area information-sharing system based on a delay-tolerant network. The proposed system consists of gateway nodes, relay nodes, and application services. The application services push the data to the nearest gateway node. The relay nodes copy the data from the gateway and carry them to another gateway. The proposed system serves an end-to-end data delivery service for application services over DTN. We have implemented a prototype of the proposed system. The prototype system uses Raspberry Pis 3 as the gateway nodes and relay nodes. We have implemented some application services as an iOS application that can send and receive media files using HTTP communication, an iOS message application that uses BLE communication, and a Bulletin Board System that uses HTTP communication. This paper demonstrates a prototype implementation of end-to-end data delivery service based on the proposed service framework.