摘要
针对源端算法TCP Vegas在持续拥塞和公平性等方面的不足,该文引入非线性最优化流控理论,把TCP Vegas和中间结点算法有效地结合起来,提出了一种新拥塞控制算法:PVegas(价格Vegas算法)。仿真结果表明,该算法不但能很好地解决网络的持续拥塞,而且相对于TCP Vegas有更好的公平性、稳定性以及低丢包率。
Aiming at the insufficiency of TCP Vegas, these include persistent congestion and fairness, this paper introduces the non- linear theory of optimization flow control, combines the TCP Vegas algorithm and link algorithm effectively, puts forward a new con- gestion control algorithm: PVegas (Price Vegas). The simulation results show that the algorithm not only can solve persistent conges- tion of network very well, but also have better fairness, stability and lower packet loss than TCP Vegas.
出处
《微计算机信息》
北大核心
2007年第30期254-255,34,共3页
Control & Automation
基金
国家自然科学基金资助项目(70571017)
关键词
拥塞控制
最优化流控
对偶模型
持续拥塞
Congestion Control, Optimization Flow Control, Dual Mode, Persistent Congestion