Seamless Streaming Service Session Migration Support Architecture for Heterogeneous Devices

摘要

As digital media is being combined into all aspects of our lives and an ubiquitous computing environments are being emerged, users, who owns several devices, expect to extend the consumption of services seamlessly on any device, any time and anywhere. This new demand requires a convenient mechanism to migrate ongoing service sessions from one device to other devices. In order to migrate running service sessions to other devices, the flexible service adaptation to user requirements and to device capabilities is necessary. In this paper, we propose an architecture that enables session migration to heterogeneous devices or multiple devices in mobile IPTV environments and discuss the technical issues which should be resolved. The proposed architecture consists of content management unit to adapt device capabilities in the streaming server and session migration management unit to migrate, split, and merge sessions. Finally, we describe our prototype and a testbed that has been implemented.