| 一种基于Fuzzy-PID控制的组播拥塞控制机制 |
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| 引用本文： | 康巧燕,王建峰,王蓉,马丽华. 一种基于Fuzzy-PID控制的组播拥塞控制机制[J]. 系统工程与电子技术, 2011, 33(2): 416-422. DOI: 10.3969/j.issn.1001-506X.2011.02.37 |
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| 作者姓名： | 康巧燕 王建峰 王蓉 马丽华 |
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| 作者单位： | 空军工程大学电讯工程学院, 陕西 西安 710077 |
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| 基金项目： | 陕西省自然科学基金(2009JQ8008); 空军工程大学电院博士启动基金(KDYBSQDJJ1007)资助课题 |
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| 摘 要： | 针对现有实际通用组播(pragmatic general multicast protocol, PGM)拥塞控制方案难以适应网络的动态变化等不足，提出了一种基于模糊比例积分微分(fuzzy proportional plus integral plus derivative, Fuzzy-PID)控制的组播拥塞控制机制(fuzzy-PID controlled multicast congestion control mechanism, FPIDMCC)。FPIDMCC在源端和接收端代表间运用Fuzzy-PID控制方案，使源端能快速响应网络拥塞，实时调整发送速率并使之趋于稳定，增强了对动态网络的适应性；此外，采用基于代表和中间节点反馈聚集相结合的方式进行反馈控制，可有效避免反馈爆炸。其中Fuzzy-PID控制方案结合了传统PID和模糊推理的优点，由模糊推理得到PID控制参数，减少了对系统模型的依赖性。仿真结果表明，FPIDMCC机制拥塞响应速度快、系统稳定性好、动态适应能力强。
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| 关 键 词： | 组播 拥塞控制 模糊比例积分微分控制 动态适应性 |
Novel multicast congestion control mechanism based on fuzzy-PID control |
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| KANG Qiao-yan,WANG Jian-feng,WANG Rong,MA Li-hua. Novel multicast congestion control mechanism based on fuzzy-PID control[J]. System Engineering and Electronics, 2011, 33(2): 416-422. DOI: 10.3969/j.issn.1001-506X.2011.02.37 |
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| Authors: | KANG Qiao-yan WANG Jian-feng WANG Rong MA Li-hua |
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| Affiliation: | Novel multicast congestion control mechanism based on fuzzy-PID control |
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| Abstract: | The existing pragmatic general multicast protocol(PGM) multicast congestion control mechanisms are difficult to satisfy the requirements of networks under various network enviroments.To overcome the limitation,a fuzzy-PID controlled multicast congestion control mechanism(FPIDMCC) is proposed.FPIDMCC introduces a fuzzy-PID controller between the source and the current limiting receivers(CLR).By using the proposed scheme,the sender can response to network congestion rapidly,adjust the source's sending rate ti... |
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| Keywords: | multicast congestion control fuzzy-PID control dynamic adaptability |
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