确保最小发送速率的TCP友好拥塞控制算法  

TCP-friendly congestion control algorithm with the minimum rate guarantees

作　　者：徐永红[1] 杨云[1] 李千目[1] 刘凤玉[1] 

机构地区：[1]南京理工大学计算机系,江苏南京210094

出　　处：《通信学报》2003年第10期131-138,共8页Journal on Communications

基　　金：国家自然科学基金资助项目(69973020);国防科工委应用基础基金资助项目(J1300D004)

摘　　要：提出一种确保最小发送速率的TCP友好拥塞控制算法CQTCCA (certified quality TCP- friendly congestion control algorithm)。该算法通过将网络结点和端点相结合,在端点对UDP数据流采用基于公式的发送速率调整,使之体现对TCP数据流的友好性;在结点对RED进行改造,得到提供带优先级包标记的MRED算法,保证对实时多媒体数据流的最小带宽要求。仿真实验验证了本算法有效性。This paper presents a certified quality TCP-Friendly congestion control algorithm (CQTCCA). The algorithm includes the end-to-end congestion control and the node queue management. Providing the rate adjustment based on equation at the end host, the UDP streams show TCP-Friendly. Though modify the RED algorithm to Marked-RED, the node can differentiate the marked and unmarked packets to guarantee the minimal rate requirement for real-time multimedia traffic. Simulation results demonstrate the effectiveness of the proposed algorithm.

关 键 词：拥塞控制 流量控制 TCP友好性 随机早期检测 服务质量 

分 类 号：TP393.4[自动化与计算机技术—计算机应用技术]