基于适应性分层策略的主动分层多播拥塞控制方案  

Adaptive layering policy-based congestion control scheme foractive layered multicast

作　　者：叶晓国[1] 

机构地区：[1]东南大学计算机科学与工程系

出　　处：《东南大学学报（自然科学版）》2005年第4期519-523,共5页Journal of Southeast University：Natural Science Edition

基　　金：国家自然科学基金资助项目(90104009).

摘　　要：为了改善分层多播拥塞控制的性能,提出了一种基于适应性效用分层策略的主动分层多播拥塞控制方案DLAALM.该方案采用了主动标记分层、适应性效用分层策略、逐跳反馈归并以及主动速率控制算法.仿真结果表明,DLAALM方案具有较高的分层多播系统效用、较快的拥塞响应速度、较好的稳定性和TCP友好特性,大大改进了分层多播拥塞控制的性能.An adaptive utility layering policy-based congestion control scheme for active layered multicast, called DL-AALM （dynamic layering-adaptive active layered multicast）, is proposed in order to improve the performance of layered multicast. Active label layering, adaptive utility layering policy, hop-by-hop feedback merging and active rate control algorithms are adopted in DL-AALM scheme. Simulation results show that DL-AALM is more responsive, more stable and TCP （transmission control protocol）-friendly, and can greatly improve the utility performance of layered multicast.

关 键 词：分层多播 拥塞控制 主动网 主动分层多播 效用分层 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]