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计算机工程 ›› 2011, Vol. 37 ›› Issue (20): 66-68.doi: 10.3969/j.issn.1000-3428.2011.20.023

• 网络与通信 • 上一篇    下一篇

3G网络中流媒体点对点自适应传输策略

李晓城，钱松荣   

  1. (复旦大学通信科学与工程系，上海 200433)
  • 收稿日期:2011-04-13 出版日期:2011-10-20 发布日期:2011-10-20
  • 作者简介:李晓城(1986－)，男，硕士研究生，主研方向：无线数据通信；钱松荣，教授

Point-to-Point Self-adaptive Transmission Strategy for Streaming Media in 3G Network

LI Xiao-cheng, QIAN Song-rong   

  1. (Department of Communication Science and Engineering, Fudan University, Shanghai 200433, China)
  • Received:2011-04-13 Online:2011-10-20 Published:2011-10-20

PDF

1131

被引次数

5 | 1

摘要： 研究3G无线网络的流媒体通信协议和性能参数，提出一种流媒体点对点自适应传输策略，包括通信链路速率估计、流媒体自适应速率控制与媒体流控制、客户端缓存反馈控制。分析结果表明，在该策略中，服务器可根据链路状况多变的3G网络特性和客户端反馈参数，自适应调节媒体速率和媒体流，从而有效避免客户端缓存的饥饿和溢出现象，达到合理利用网络带宽资源的目的。

关键词: 3G网络, 流媒体, 自适应传输, 点对点传输

Abstract: Based on the research of streaming communication mechanism and parameters control principle, this paper presents an point-to-point self-adaptive transmission strategy for streaming media in 3G wireless network, which includes estimation for communication link rate, principle of self-adaptive media rate control and stream track control, control of buffering feedback from clients. Analysis result shows that media server can adapt media rate and streaming track in according with network link situation and feedback parameters of clients, effectively avoid buffer underflow and overflow, achieves the purpose of using the network bandwidth resources.

Key words: 3G network, streaming media, self-adaptive transmission, point-to-point transmission

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