| 基于二次型优化的神经元PID无线拥塞算法研究 |
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| 引用本文： | 胡为民,陈亮.基于二次型优化的神经元PID无线拥塞算法研究[J].苏州大学学报(医学版),2009,25(3):42-46. |
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| 作者姓名： | 胡为民 陈亮 |
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| 作者单位： | 胡为民(南通纺织职业技术学院,信息系,江苏,南通,226007);陈亮(南通纺织职业技术学院,信息系,江苏,南通,226007;南京理工大学,计算机科学与技术学院,江苏,南京,210094) |
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| 摘 要： | 神经元PID算法能较好地控制瓶颈节点的队列长度,但当网络环境发生较大变化时,其控制效果往往难以保证.根据Ad Hoc网络环境参量时变的特点,推导了无线TCP/AQM离散模型,在神经元算法的加权系数中引入二次型性能指标,设计了一种基于二次型性能指标的神经元PID的AQM.仿真结果表明:在动态拓扑、突发流及链路容量变化的Ad Hoc网络中,该改进算法优于PI算法.
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| 关 键 词： | 无线自组网 拥塞控制 二次型性能指标 神经元PID |
PID congestion control based on neural network in Ad Hoc Network |
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| Hu Weimin,Chen Liang.PID congestion control based on neural network in Ad Hoc Network[J].Journal of Suzhou University(Natural Science),2009,25(3):42-46. |
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| Authors: | Hu Weimin Chen Liang |
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| Institution: | 1.Information department;Nantong Textile Vocational Technology College;Nantong 226007;China;2.School of Computer Science and Technology;Nanjing Univ.of Science and Technology;Nanjing 210094;China |
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| Abstract: | Neuron PID can regulate the queue size of a bottleneck node successfully,but its control often is worse when the network state changes.For Ad Hoc network's time-varying,it deduced discrete math model of TCP/AQM control object in wireless network.It introduced Quadratic Performance Index to weighting coefficient modification for neuron PID controller.Finally,a neuron Proportional-Integral-Differential AQM based on Quadratic Performance Index is proposed.Matlab and NS-2 simulations demonstrate that new algori... |
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| Keywords: | Ad Hoc network congestion control quadratic performance index neuron PID |
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