Abstract:In order to solve the performance problems of existing P2P live streaming system in the dynamic environment

such as considerable startup delay

the node startup process was modeled to analyze the key factors

which had effects on node startup process performance. From the view of data scheduling

a node status adaptive startup strategy (NSAS) was proposed. This strategy improved three major processes of node startup process

which were selecting the startup request point

data scheduling

and playing strategy

so as to reduce the resource waste in startup process

accelerate nodes obtaining chunks and improve start playing conditions. Simulation results showed that this strategy can improve the system adaptability to dynamic environment and data distribution efficiency

and reduce the startup delay and playback lag.