Abstract
P2P Live streaming systems is unstructured mesh topology, except satisfying large-scale concurrent node access, it would also lead to long transmission delay due to excessive number of times of data transmission. In order to reduce the number of times of data transmission in the network, the node classification concurrent transmission algorithm is suggested in this paper, which makes the peer-level nodes concurrent to initiatively transmit data, avoiding the inefficient bandwidth utilization of random transmission request of node and high management cost; meanwhile, each level will continue to transmit data to its next-level nodes, triggering and continuously accelerating the concurrent transmission within this level, thus to achieve the maximum use of bandwidth and reduce the overall delay of transmission. Analyze by conducting mathematical modeling, when the data content is divided into enough copies by classification concurrent transmission algorithm, the total time unit spend in transmitting data blocks to all of the nodes and the average time unit spent on nodes are superior to those of the existing transmission algorithms.
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