Data transmission strategy of P2P pattern live video media streaming system

SUN Zhi-xin1; CHEN Ya-dang1; REN Zhi-guang1

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Data transmission strategy of P2P pattern live video media streaming system

更新时间：2024-10-14

- Data transmission strategy of P2P pattern live video media streaming system
- Vol. 32, Issue 6, Pages: 1-9(2011)
- 作者机构：
  
  1. 南京邮电大学宽带无线通信与传感网技术教育部重点实验室
  2. 南京大学计算机软件新技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP393.02
- Published：2011
- 稿件说明：
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SUN Zhi-xin1, CHEN Ya-dang1, REN Zhi-guang1. Data transmission strategy of P2P pattern live video media streaming system[J]. 2011, 32(6): 1-9.
DOI：

SUN Zhi-xin1, CHEN Ya-dang1, REN Zhi-guang1. Data transmission strategy of P2P pattern live video media streaming system[J]. 2011, 32(6): 1-9. DOI：

摘要

针对P2P模式下视频流媒体直播系统的数据传输策略用改进的模拟退火算法进行了优化。以全局规划的思想建立了P2P视频流媒体的数据传输策略数学模型VMDTSA-P2P

模型充分考虑了可用出口带宽和可用性时间对播放连续性的影响

把它们作为获取最优解的目标函数因子

并用改进后的模拟退火算法进行解的寻优

相比于传统的数据传输策略

在具有大量用户的情况下加快了新节点从伙伴节点中选择数据块提供节点的速度

并且保证得到近似最优的数据块提供节点组合

减少了视频流媒体直播系统播放的延迟

从而提高了播放的连续性、流畅性

保证了视频播放的质量。通过该算法在模拟P2P系统中的实现

验证了该算法在P2P系统中对数据传输的准确性和高效性。

Abstract

An algorithm optimization was made with improved simulated annealing algorithm aimed at data transmission strategy of streaming media system in P2P networks.According with global layout

a mathematic model have been estab-lished for data transmission strategy of streaming media system in P2P networks named VMDTSA-P2P

which com-pletely have considered the affection of both the out-bandwidth and the available time

and take them as the object func-tion for getting the optimum solution.It also optimized the solutions with improved simulated annealing algorithm.Compared with traditional data transmission strategies

this improved algorithm accelerates the speed of new nodes choose the data provider from its partner nodes when there are lots of users and insures the solution of the data provider is approximate the best.Thus

the play delay of the streaming media system is decreased and the quality of video playback is increased.By realizing it in a simulated P2P system

the accuracy and the efficiency were both verified in the simulation.

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