摘要
RED算法能够及时预测网络拥塞的到来,并同过标记避免网络拥塞,同时还解决了TCP全局同步的问题。RED算法对参数过于敏感一直是研究的主要问题。建立RED算法的数学模型,从数学角度分析RED算法的原理以及工作过程。对数学模型的静态分析、参数分析研究各个参数在算法中所起的作用以及其影响因子;给出如何设定参数才能使RED算法达到更好的性能。
RED algorithm detects incipient congestion by computing the average queue size, and avoids the congestion by controlling the average queue size, and avoids TCP global synchronization. First derive the equilibrium values of the TCP window size and the buffer occupancy of the RED gateway. The parameters of RED algorithm are sensitive about the environment of network. The mathematical model is set to present the performance and the algorithm of RED. The steady state behavior of the RED algorithm is analyzed by explicitly modeling the congestion control mechanism of TCP. Finally how control parameters of the RED algorithm should be configured for achieving better performance is discussed.
出处
《计算机工程与设计》
CSCD
北大核心
2008年第9期2179-2180,2202,共3页
Computer Engineering and Design
基金
国家自然科学基金项目(60673185)
