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一种协同改进FAST TCP公平性算法
  • 期刊名称：广东工业大学学报
  • 时间：0
  • 页码：4-8
  • 语言：中文
  • 分类：TP393[自动化与计算机技术—计算机应用技术;自动化与计算机技术—计算机科学与技术]
  • 作者机构：[1]广东工业大学自动化学院,广东广州510006, [2]茂名学院计算机与电子信息学院,广东茂名525000
  • 相关基金：国家和广东省联合基金资助项目（U0735003）; 国家自然科学基金资助项目（60604006）; 教育部博士点基金资助项目（20070562005）
  • 相关项目：复杂传感与控制网络系统的建模、控制与优化
作者： 章云|陈晓龙|刘治|
关键词： 公平性, 传播延时, 局部信息, 协同, 同步回退时钟, fairness, propagation delay, local information, cooperant, synchronization back-off clock
中文摘要：

针对同时到达多个FAST TCP连接时,新连接存在难以估测的传播延时而导致不公平性的问题,提出一种协同改进算法.该算法通过各连接充分利用源端获得的局部信息,协同合作确定同步回退时钟和最小回退因子.在无法直接通信的情况下,实现短暂同步回退清空缓冲队列长度,确保快速获得准确的传播延时和FAST TCP协议的公平性.NS-2仿真实验表明,该算法与其它相关改进算法相比,在失去了较小稳定性的情况下确保了各连接良好的公平性.

英文摘要：

A cooperant improved algorithm is proposed,aiming at the problem of unfairness caused by the inaccurate estimation of the round trip propagation delay at the time of simultaneous connections of multiple FAST TCP.The synchronization back-off clock and the minimum back-off factor were determined via the full use of the locally available information cooperantly.Without direct communication of the FAST connections,the true propagation delay was accurately and quickly estimated,and the fairness was achieved for the buffer queue to empty occasionally.The NS-2 simulation results demonstrate that compared with other related algorithms,this improved algorithm can achieve fairness and higher stability.

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复杂传感与控制网络系统的建模、控制与优化
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