| 基于优先级区分的调度及主动队列管理算法 |
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| 引用本文： | 刘春,董育宁,彭宇珏,孔瑞溪. 基于优先级区分的调度及主动队列管理算法[J]. 南京邮电大学学报(自然科学版), 2014, 0(1): 76-81 |
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| 作者姓名： | 刘春 董育宁 彭宇珏 孔瑞溪 |
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| 作者单位： | 南京邮电大学通信与信息工程学院,江苏南京210003 |
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| 基金项目： | 国家自然科学基金（61271233,60972038）、教育部博士点基金（20103223110001）和江苏省研究生培养创新工程（CXZZ12_0468）资助项目 |
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| 摘 要： | 文中研究在UMTS网络的AM模式（Acknowledged Mode）下实现基于优先级区分的调度及主动队列管理.提出了MP-SAQM（Multi-priorities Scheduling and Active Queue Management Algorithm）算法.算法将不同的QoS类别归入不同的优先级队列,根据MPADRR（Multi-priorities Average Deficit Round Robin）调度算法按照优先级高低进行调度,并对不同QoS类别设置均匀的队列缓冲区,保证了调度的公平性.同时使用差异化的RED（Random Early Drop）算法进行主动队列管理,对不同优先级队列执行不同的丢包策略.仿真结果验证了该算法的有效性.
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| 关 键 词： | UMTS 调度 主动队列管理 优先级区分 |
Scheduling and Active Queue Management Algorithm Based on Priority Differentiation |
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| LIU Chun,DONG Yu-ning,PENG Yu-jue,KONG Rui-xi. Scheduling and Active Queue Management Algorithm Based on Priority Differentiation[J]. JJournal of Nanjing University of Posts and Telecommunications, 2014, 0(1): 76-81 |
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| Authors: | LIU Chun DONG Yu-ning PENG Yu-jue KONG Rui-xi |
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| Affiliation: | 1.College of Telecommunications ＆ Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;) |
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| Abstract: | A multi-priority scheduling and active queue management （MP-SAQM） algorithm is applied to the acknowledge mode （AM） of UMTS network.Packets of different QoS classes are allocated to different queues with different priorities.Each QoS class is assigned a uniform queue size and is schedued based on priority using MPADRR scheduling algorithm,guarantying the fairness of scheduling.A differentiated RED algorithm is used for active queue management.It uses different packet drop strategies for different priority queues.Simulation results show that the proposed MP-SAQM algorithm is effective. |
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| Keywords: | universal mobile telecommunication system （UMTS） scheduling active queue management priority differentiation |
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