吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (1): 259-264.doi: 10.13229/j.cnki.jdxbgxb201601039

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Dynamic layering model and transmission algorithm in P2P live streaming system

LIU Yan-heng, LI Song-jiang, WANG Ai-min   

  1. College of Computer Science and Technology, Jilin University, Changchun 130012,China
  • Received:2014-08-25 Online:2016-01-30 Published:2016-01-30

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Abstract: To solve the transmission delay exorbitant problem in P2P live streaming system, we develop a dynamic layering model based on the uploading bandwidth of peers, and introduce its quantitative basis and method of the initialization and dynamic adjustment. Based on this model, we propose a new parallel transmission algorithm. Meanwhile, each layer of the peers generates seeds at geometric growth rate and transmits them to the lower layer continuously. In mathematical modeling analysis, when the parallel transmission algorithm divides the data content into sufficient units, the total time unit and average time unit costs for transmitting the data content to all the peers are better than the existing transmission algorithm.

Key words: computer application, P2P live streaming, dynamic layering model, parallel transmission algorithm

CLC Number: 

  • TP391
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