| 非线性时变时滞FAST TCP系统低保守全局稳定性 |
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| 引用本文： | 陈晓龙,章云,刘治.非线性时变时滞FAST TCP系统低保守全局稳定性[J].控制理论与应用,2012,29(4):477-484. |
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| 作者姓名： | 陈晓龙 章云 刘治 |
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| 作者单位： | 1. 广东工业大学自动化学院,广东广州510090 广东石油化工学院计算机与电子信息学院,广东茂名525000
2. 广东工业大学自动化学院,广东广州,510090 |
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| 基金项目： | 国家–广东省联合基金资助项目(U0735003); 广东省自然科学基金资助项目(S2011010003667); 广东省自然科学基金团队项目资助项目(8351009001000002). |
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| 摘 要： | 研究了非线性、时变时滞的快速传输控制协议(FAST TCP)系统的全局稳定性. 首先, 利用其时滞变化与源端发送窗口变化成比例关系和其非线性函数是严格单调递减函数这两个特性, 计算每个振荡周期的解轨迹界, 建立计算轨迹界的改进型迭代公式, 得到了比已有结论更低保守的全局稳定性条件. 最后, 通过网络模拟器2(NS-2)仿真实例验证了改进的全局稳定性条件的有效性.
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| 关 键 词： | 非线性 时变时滞 全局稳定性 解轨迹界 |
| 收稿时间： | 2010/12/27 0:00:00 |
| 修稿时间： | 2011/12/19 0:00:00 |
Less conservative global stability for nonlinear FAST TCP system with time-varying time-delay |
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| CHEN Xiao-long,ZHANG Yun and LIU Zhi.Less conservative global stability for nonlinear FAST TCP system with time-varying time-delay[J].Control Theory & Applications,2012,29(4):477-484. |
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| Authors: | CHEN Xiao-long ZHANG Yun and LIU Zhi |
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| Affiliation: | School of Automation, Guangdong University of Technology; School of Computer and Electronics Information, Guangdong University of Petrochemical Technology,School of Automation, Guangdong University of Technology,School of Automation, Guangdong University of Technology |
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| Abstract: | We investigate the global stability of the nonlinear fast active queue management scalable transmission control protocol (FAST TCP) system with time-varying time-delay. By considering that the time-delay variation is proportional to the sending window variation of the TCP source and the nonlinear function is strictly monotonically decreasing, we present the improved iterative formulas for calculating the trajectory bounds and determining the trajectory bounds of the FAST TCP system in each oscillating period. For the FAST TCP system, we develop a global stability condition which is less conservative than the existing one. The effectiveness of this improved global stability condition is validated by the network simulator 2 (NS-2) simulation results. |
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| Keywords: | nonlinear time-varying time-delay global stability trajectory bounds |
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