Using Load Transformations for the Specification of Arrival Processes in Simulation and Analysis
Using Load Transformations for the Specification of Arrival Processes in Simulation and Analysis
复制标题
在仿真和分析中使用负载变换来指定到达过程
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
B. Wolfinger
中科院分区：
文献类型：
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作者：
Stephan Heckmüller;B. Wolfinger
在本文中，负载变换的创新方法用于导出计算机网络中二次负载的有效负载模型，因为它们可以在协议栈的下层接口处观察到。我们将负载变换技术应用到以批处理马尔可夫到达过程（BMAP）模型表示的负载上，并选择当前网络中广泛使用的实际相关的令牌桶机制作为具体的负载变换。我们能够确定封闭式解析解来描述变换后的负载。通过模拟反映基于令牌桶的负载转换的分析模型的质量进行的调查强调了预测的二次负载的高度准确性和有效性。我们还提出了一种实现不同转换功能的工具，该工具可用于指定模拟和分析性能评估的到达过程。
In this paper the innovative approach of load transformation is used to derive valid load models for secondary loads in computer networks, as they can be observed at lower-layer interfaces of protocol stacks. We apply the technique of load transformation onto a load represented by batch Markovian arrival process (BMAP) models and choose as concrete load transformation the practically relevant token bucket mechanism, which is widely used in current networks. We are able to determine closed-form analytical solutions to describe the transformed load. Investigations by means of simulations of the quality of our analytical models reflecting token-bucket-based load transformations underline the high level of accuracy and validity of the predicted secondary load. We also present a tool implementing different transformation functionalities which can be used for the specification of arrival processes for simulative and analytic performance evaluation.