计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (30): 128-130.DOI: 10.3778/j.issn.1002-8331.2008.30.039

• 网络、通信、安全 • 上一篇    下一篇

一种自适应动态分层多播方案

张 牧1,李 君2   

  1. 1.贵阳学院 计算机科学系,贵阳 550005
    2.南京邮电大学 江苏省通信与网络技术工程研究中心,南京 210003
  • 收稿日期:2007-11-26 修回日期:2008-02-25 出版日期:2008-10-21 发布日期:2008-10-21
  • 通讯作者: 张 牧

Adaptive dynamic layered multicast scheme

ZHANG Mu1,LI Jun2   

  1. 1.Department of Computer Science,Guiyang University,Guiyang 550005,China
    2.Jiangsu Province Engineering Research Center of Telecommunication & Network Technology,Nanjing University of Posts and Telecommunications,Nanjing 210003,China
  • Received:2007-11-26 Revised:2008-02-25 Online:2008-10-21 Published:2008-10-21
  • Contact: ZHANG Mu

摘要: 针对多播接收者的可用带宽异构性问题,提出了一种自适应动态分层多播拥塞控制算法(ADLM)。ADLM运用最优化层输率分配算法来自适应地满足接收者的异构性。ADLM可以根据网络情况动态地调整分层的数量以及每一分层的层速率。仿真实验表明,该算法TCP友好的,同时它可以提高系统的吞吐量。

关键词: 分层多播, 拥塞控制, 聚集算法

Abstract: In this paper,an adaptive dynamic layered multicast scheme,ADLM is introduced,to address multicast receivers’ heterogeneity in available bandwidth.ADLM uses an optimal layer rate allocation algorithm which can maximally satisfy each receiver’s available bandwidth.Through a novel feedback aggregate algorithm,ADLM dynamically determines the number of layers and the rate of each layer.Simulation results show that ADLM is TCP-friendly.Meanwhile it can optimize overall throughput.

Key words: layered multicast, congestion control, aggregate algorithm