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首页> 外文期刊>Systems Journal, IEEE >Power-Efficient Provisioning for Online Virtual Network Requests in Cloud-Based Data Centers
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Power-Efficient Provisioning for Online Virtual Network Requests in Cloud-Based Data Centers

机译：基于云的数据中心中的在线虚拟网络请求的高效配置

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摘要

A cloud computing paradigm enables users to access services, applications, and infrastructure resources by using thin clients anywhere and at any time. In this paradigm, multiple users can share cloud infrastructure resources. The application or service requests from a user can be abstracted as a virtual network (VN) request and can be submitted to the cloud-based data centers. How to map a VN onto the cloud infrastructure network is a challenging issue in cloud resource provisioning. Thus, efficient mapping techniques that intelligently use the resources of cloud infrastructure are important and necessary. Current research on VN mapping and design focuses on resource-efficient VN mapping or cost-efficient VN mapping. However, there is another important issue in cloud-based data centers that we must pay attention to, i.e., the amount of power or energy that is consumed by a data center. The power consumption in data centers can be a significant percentage of the total power consumption, and it not only leads to a higher data center operating cost but also contributes to carbon emissions and the greenhouse effect. In this paper, we propose a power-efficient resource provisioning technique in cloud-based data centers while complying with service level agreements. We first model a power-efficient VN provisioning problem as a mathematical optimization problem, with the objective of minimizing the power consumption by employing mixed-integer programming. We then propose a heuristic algorithm to efficiently solve this model since this optimization problem is NP-hard. We validate and evaluate our framework and algorithm by conducting extensive simulations on different cloud infrastructure networks under various scenarios. The simulation results show that our approach performs well.
机译：云计算范例使用户可以通过随时随地使用瘦客户端来访问服务，应用程序和基础架构资源。在此范例中，多个用户可以共享云基础架构资源。来自用户的应用程序或服务请求可以抽象为虚拟网络（VN）请求，并可以提交给基于云的数据中心。在云资源供应中，如何将VN映射到云基础架构网络是一个具有挑战性的问题。因此，智能地使用云基础架构资源的有效映射技术非常重要和必要。当前对VN映射和设计的研究集中在资源高效的VN映射或经济高效的VN映射。但是，基于云的数据中心中还有另一个重要问题，我们必须注意，即数据中心消耗的电量或能量。数据中心的功耗可能占总功耗的很大一部分，不仅导致更高的数据中心运营成本，而且还会导致碳排放和温室效应。在本文中，我们提出了一种基于云的数据中心中高效节能的资源供应技术，同时又要遵守服务水平协议。我们首先将高能效的VN调配问题建模为数学优化问题，目的是通过采用混合整数编程将功耗降至最低。然后，我们提出了一种启发式算法来有效地解决此模型，因为此优化问题是NP-hard问题。我们通过在各种情况下对不同的云基础架构网络进行广泛的仿真，来验证和评估我们的框架和算法。仿真结果表明我们的方法表现良好。

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