| 一种动态带宽分配策略及其性能分析 |
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| 引用本文： | 金顺福,吕倩,王朋,李小良.一种动态带宽分配策略及其性能分析[J].计算机工程,2012,38(9):83-85,92. |
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| 作者姓名： | 金顺福 吕倩 王朋 李小良 |
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| 作者单位： | 1. 燕山大学信息科学与工程学院,河北秦皇岛,066004
2. 开滦(集团)有限责任公司信息与控制中心,河北唐山,063018 |
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| 基金项目： | 河北省自然科学基金资助项目(F2009000475) |
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| 摘 要： | 针对当前网络中不同业务的服务质量需求，综合考虑业务优先级及业务负载，提出一种动态带宽分配策略——E-DBA。建立具有多重工作休假机制的Geom/G/1排队模型，使用嵌入式马尔可夫链导出排队模型的稳态指标。给出E-DBA的平均响应时间和信道利用率等系统性能指标表达式，并通过实验分析了第II类业务的保障带宽对系统性能的影响。
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| 关 键 词： | 动态带宽分配 服务质量 排队模型 多重工作休假 马尔可夫链 |
| 收稿时间： | 2011-06-30 |
Strategy of Dynamic Bandwidth Allocation and Its Performance Analysis |
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| JIN Shun-fu
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LV Qian
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WANG Peng
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LI Xiao-liang.Strategy of Dynamic Bandwidth Allocation and Its Performance Analysis[J].Computer Engineering,2012,38(9):83-85,92. |
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| Authors: | JIN Shun-fu LV Qian WANG Peng LI Xiao-liang |
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| Affiliation: | 1.College of Information Science and Engineering,Yanshan University,Qinhuangdao 066004,China;2.Information and Control Center,Kailuan Group Co.,Ltd.,Tangshan 063018,China) |
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| Abstract: | Aiming at Quality of Service(QoS) requirements of different traffics in the current network,a dynamic bandwidth allocation strategy named E-DBA is proposed by taking into account both the traffic priority and system load.Geom/G/1 queuing model with multiple working vacations mechanism is established.By using the method of embedded Markov chain,the steady-state measures of the queueing model are derived.The performance measures in terms of the average response time and system utility of E-DBA are given.With experiments,the influence of the guaranteed bandwidth of class II traffic on the system performance is illustrated. |
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| Keywords: | dynamic bandwidth allocation Quality of Service(QoS) queuing model multiple working vacation Markov chains |
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