基于层代表速率特性多元差异的分层组播策略研究  

Research of Layered Multicast Based on Speed Characteristic of Current Limiting Receiver

作　　者：沈渊[1] 

机构地区：[1]扬州市职业大学信息工程学院,扬州225012

出　　处：《计算机与数字工程》2012年第12期99-101,共3页Computer & Digital Engineering

摘　　要：分层组播技术是目前解决多媒体实时数据在异构网络中传输的重要解决方案。文章通过聚类分析用户网速特性,完成分层组播的层次划分。恒速优先原则确保选择合适的层代表,而引入层代表单轮选择机制,合理设置速率下降阈值,使层代表更加具有稳定性。该算法简单,不会造成过多的网络反馈负担,降低接收速率发生震荡的可能,保证了接收速率的平滑性。Layered multicast is a significant solution for transmitting real-time multimedia data in heterogeneous network.Through the user rate of the network clustering analysis,the layered multicast model is completed.Constant speed principle of priority to ensure the stability of the CLR.Single wheel CLR current limiting receiver mechanism is introduced,to set reasonable rate threshold,then make it more stable.The algorithm is relatively simple,does not cause excessive network feedback burden,and can ensure the receiving rate smoothness.

关 键 词：分层组播 速率特性 阈值 单轮 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]