【摘要】 分层组播是在异构网络中传输多媒体实时数据的一个重要解决方案。拥塞控制是实现分层组播的一个重点和难点问题。分析了分层组播拥塞控制机制的目标和需解决的基本问题,探讨了目前几种较为典型的分层组播拥塞控制协议,重点分析各协议解决基本问题,实现拥塞控制目标的策略。最后指出分层组播拥塞控制研究中的焦点。更多还原

【Abstract】 Layered multicast is the general recommended approach for dissemination of audio and video in heterogeneous network environments.The main problem in Layered multicast application is congestion control.The goals and the basic problems in layered multicast congestion control are analyzed.Several existing layered multicast congestion control protocols are discussed and the methods they used to solve the problems are emphatically analyzed.更多还原