Demo abstract disseminate: A demonstration of device-to-device media dissemination

In this demonstration, we showcase Disseminate, a protocol and accompanying Android application for supporting device-to-device dissemination of data that fulfills shared interests of devices in pervasive computing environments. Disseminate is a novel publish-subscribe based protocol that breaks large (likely media heavy) data items into smaller chunks and opportunistically shares the chunks among co-located mobile devices. Interested devices issue subscriptions for the chunks they need and advertisements for the chunks they can share. Our publish mechanism uses a computation of a chunk's uniqueness to determine whether or not to broadcast it to the locally connected devices. The Disseminate app provides an implementation of the protocol in an Android application for sharing photographs via WiFi-Direct broadcast communication.