A failover mechanism for peer-to-peer streaming over multiple multicast trees

Peer-to-peer streaming is a fundamental approach for the delivery of real-time video content. Although self-scalable, peer-to-peer networks suffer from peer dynamics like unpredictable arrivals and departures. In tree-based overlays, these phenomena lead in frequent disconnections or network partitioning. In the present work, a failover mechanism for multiple-multicast-tree-based overlays is presented. The proposed mechanism alleviates the impact of connection failures and achieves higher efficiency than the one offered by tree-diversity alone. The effectiveness of the mechanism is validated through simulation.