Layer Allocation Algorithms in Layered Peer-to-Peer Streaming

Abstract. In layered peer-to-peer streaming, as the bandwidth and data availability (number of layers received) of each peer node are constrained and heterogeneous, the media server can still become overloaded, and the streaming qualities of the receiving nodes may also be constrained for the limited number of supplying peers. This paper identifies these issues and presents two layer allocation algorithms, which aim at the two scenarios of the available bandwidth between the media server and the receiving node, to reach either or two of the goals: 1) minimize the resource consumption of the media server, 2) maximize the streaming qualities of the receiving nodes. Simulation results demonstrate the efficiencies of the proposed algorithms.