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.
出处
《通信学报》
EI
CSCD
北大核心
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)
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
congestion control
traffic control
TCP-friendly
random early detection
quality of service
