Oi! - Opportunistic Data Transmission based on Wi-Fi Direct

This demo presents Oi!, an opportunistic data transmission tool. Implemented on Android and available as open source, Oi! relies on social interaction, device-to-device short-range wireless transmission, as well as on history of contact duration to perform opportunistic data transmission. In this demo we show how Oi! can be used with intermittent Internet access between sources and destinations, to transmit data in a reliable and yet opportunistic way.