多速率多播拥塞控制研究  

Advances in multi-rate multicast congestion control

作　　者：张登银[1] 李军[1] 

机构地区：[1]南京邮电学院计算机科学与技术系,江苏南京210003

出　　处：《重庆邮电学院学报（自然科学版）》2005年第2期215-220,共6页Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)

基　　金：国家自然科学基金(70271050);国家863计划基金资助项目(2002AA712037)

摘　　要：多播传输所面临的最主要的问题就是提供一种可扩展的拥塞控制机制,既能与TCP传输相适应,同时能克服网络的异构性,为端到端的网络接收者进行多播数据传递。多速率多播拥塞控制不仅解决了多播的可扩展性问题,而且提高了异构网络带宽的利用率,在Internet多播应用领域倍受关注。对多速率分层多播拥塞控制的性能进行了评价后,着重研究了与性能有关的关键问题和解决方法。通过对现有分层多播拥塞控制的代表性算法进行性能分析和比较,指出了未来的工作方向。One of the significant challenges associated with multicast delivery to large audiences is providing a scalable congestion control mechanism that is compliant with TCP yet addresses heterogeneity in end-to-end bandwidth across receivers. Multi-rate multicast congestion control (MR-MCC) can resolve the scalability problem for Internet environment and achieve high utilisation of heterogeneous network bandwidth. Recently, the technique of layered multicast has been employed as a strategy capable of accommodating diverse sets of receivers. In this paper, the key issues related to multi-rate layered multicast congestion control are discussed, and then some representative work is outlined. Finally the development direction and future work are also analysed.

关 键 词：多播 拥塞控制 多速率 分层 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]