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arXiv 2205.14735cs.NIcs.SYeess.SY
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边缘计算网络中数据密集型服务的动态控制

Dynamic Control of Data-Intensive Services over Edge Computing Networks

Yang Cai, Jaime Llorca, Antonia M. Tulino, Andreas F. Molisch

摘要:

下一代分布式计算网络(例如,边缘和雾计算)通过促进对终端用户附近的计算资源的访问来实现对延迟敏感的、计算密集型应用的有效递送。这些应用中的许多(例如,增强/虚拟现实)也是数据密集型的:除了用户特定的(实时)数据流之外,它们还需要访问(静态)数字对象(例如,图像数据库)来完成所需的处理任务。当托管相关服务功能的服务器上无法获得所需对象时,必须从其他边缘位置获取这些对象,从而导致额外的通信成本和延迟。在这样的设置中,整体服务交付性能将受益于围绕(i)实时数据流的路由路径和处理位置以及(ii)相关联的数字对象的缓存选择和分发路径的联合优化的决策。在本文中,我们解决了边缘云网络上数据密集型服务的动态控制问题。我们的网络稳定区域的特点和设计的第一个吞吐量最优控制政策,协调处理和路由决策的实时和静态的数据流。数值结果证明了优越的性能(例如,吞吐量、延迟和资源消耗),与缺乏集成流处理和数据分发控制的现有技术的算法相比。

英文摘要:

Next-generation distributed computing networks (e.g., edge and fog computing) enable the efficient delivery of delay-sensitive, compute-intensive applications by facilitating access to computation resources in close proximity to end users. Many of these applications (e.g., augmented/virtual reality) are also data-intensive: in addition to user-specific (live) data streams, they require access to (static) digital objects (e.g., image database) to complete the required processing tasks. When required objects are not available at the servers hosting the associated service functions, they must be fetched from other edge locations, incurring additional communication cost and latency. In such settings, overall service delivery performance shall benefit from jointly optimized decisions around (i) routing paths and processing locations for live data streams, together with (ii) cache selection and distribution paths for associated digital objects. In this paper, we address the problem of dynamic control of data-intensive services over edge cloud networks. We characterize the network stability region and design the first throughput-optimal control policy that coordinates processing and routing decisions for both live and static data-streams. Numerical results demonstrate the superior performance (e.g., throughput, delay, and resource consumption) obtained via the novel multi-pipeline flow control mechanism of the proposed policy, compared with state-of-the-art algorithms that lack integrated stream processing and data distribution control.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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