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Reducing cross-group traffic with a cooperative streaming architecture

Cooperative approaches, such as P2P networks, have demonstrated their effectiveness in video delivery. However, with underlay structure considered, it is still possible to further improve traffic efficiency. In this paper, we discuss the problem of localizing the traffic traversal across peer groups, which are partitioned according to underlay characteristics. We first provide three concrete examples to demonstrate this common challenge, which we theoretically formulate afterwards. Finally, we propose a ring overlay approach, which performs excellently to solve the problem, while tolerating peer dynamics and supporting peer heterogeneity.