| 基于随机逼近动态带宽分配的CAC研究 |
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| 引用本文： | 杨宇翔,周廷显.基于随机逼近动态带宽分配的CAC研究[J].高技术通讯,2002,12(3):27-29. |
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| 作者姓名： | 杨宇翔 周廷显 |
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| 作者单位： | 哈尔滨工业大学电子与通信工程系,哈尔滨,150001 |
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| 摘 要： | ATM网络中，基于动态带宽分配的CAC，即可以提高ATM网络资源的利用率又能保证业务的QoS要求。本文运用自适应随机逼近算法研究了ON／OFF信源模型的带宽估计及接入问题，数值计算的结果表明，随机逼近能较好地逼近实际值，与社会网络方法相比，随机逼近算法的特点是不需要离线训练，也不需要已准好的样本，这能在网络实际运行中自动调整自动收敛。
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| 关 键 词： | 动态带宽分配 CAC 随机逼近 ATM 业务管理机制 宽带网络 |
A Proposal of CAC Scheme Based on Dynamic Bandwidth Allocation Using Stochastic Approximation |
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| Yang Yuxiang,Zhou Tingxian.A Proposal of CAC Scheme Based on Dynamic Bandwidth Allocation Using Stochastic Approximation[J].High Technology Letters,2002,12(3):27-29. |
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| Authors: | Yang Yuxiang Zhou Tingxian |
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| Abstract: | In this paper we propose a new CAC scheme,which couples the simplicity of static CAC scheme with dynamic mechanism that estimates the true resource requirement based on the network's QoS measurements. To solve dynamic bandwidth allocation, this paper use adaptive stochastic approximation algorithm to compute true bandwidth requirement of the aggregated ON/OFF traffic. The simulation results show that the proposed algorithm can well approximate the true bandwidth,compared with fluid flow and effective bandwidth method. |
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| Keywords: | Dynamic bandwidth allocation CAC Stochastic approximation ATM |
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