Leveraging transitions for the upload of user-generated mobile video

A recent trend in user-generated content production is the broadcasting of live video streams from mobile devices. A set of upload protocols have been proposed supporting the live transmission of user-generated video. Their performance depends on the environmental conditions, e.g., the mobility of users, the network conditions or the popularity of the streams. Thus, we propose a novel mobile broadcasting framework, which exchanges different uploading protocols during the runtime of the application. Our goal is to use the protocol performing best under given application requirements and environmental conditions. If the requirements or the conditions change, the system dynamically assesses whether the the protocol currently used is still the most appropriate one for streaming. In case a superior protocol is available, the system transitions to the new protocol. By leveraging such transitions for video upload protocols, we achieve a superior overall performance under changing network conditions in comparison to a single upload protocol.