Spray and wait: an efficient routing scheme for intermittently connected mobile networks
Proceedings of the 2005 ACM SIGCOMM workshop on Delay-tolerant networking
The ONE simulator for DTN protocol evaluation
Proceedings of the 2nd International Conference on Simulation Tools and Techniques
The design and implementation of a session layer for delay-tolerant networks
Computer Communications
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In order to address the challenge of digital exclusion, we introduce an access method based on message ferrying that enables free delay-tolerant Internet access to all. Targeting an urban scenario, where means of public transport, such as buses and trams, follow a predefined route and schedule, we utilise a priori knowledge about their current location to extend Internet access provided by hotspots to users and areas that are not typically covered. In this paper, we explore how the deployment of DTN-capable nodes can extend free Internet coverage in metropolitan areas, we depict the inefficiency of existing DTN routing protocols in highly-dense environments and we propose Connectivity plAn Routing PrOtOcOL (CARPOOL), a reference routing protocol to support our claims. CARPOOL exploits the connectivity plan of public transportation, achieving high delivery ratio with minimum overhead.