arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.03508eess.SP
收藏

用于高能效移动边缘计算的不连续计算卸载

Discontinuous Computation Offloading for Energy-Efficient Mobile Edge Computing

Mattia Merluzzi, Nicola di Pietro, Paolo Di Lorenzo, Emilio Calvanese Strinati, Sergio Barbarossa

摘要:

我们提出了一种新的节能动态计算卸载策略,在边缘计算辅助的超5G网络的背景下。目标是在无线接口上的端到端服务延迟和分组错误率性能的约束下,最小化包括多个用户设备(UE)、接入点(AP)和边缘服务器(ES)的整个系统的能耗。为了降低能耗,我们为用户、AP和ES开发了低功耗睡眠操作模式,将边缘计算范式从始终开启转变为始终可用的架构,能够以最小的能耗保证按需目标服务质量。为此,我们提出了一个在线算法的动态和最佳编排的无线电和计算资源称为不连续计算卸载(DisCO)。在这样的框架中,端到端的延迟约束转化为对总体调度延迟的约束,包括卸载服务的通信和计算阶段。DisCO依赖于李雅普诺夫随机优化,不需要任何先验知识的统计卸载业务或无线电信道,并满足长期的性能约束的用户。几个数值结果说明了所提出的方法的优点。

英文摘要:

We propose a novel strategy for energy-efficient dynamic computation offloading, in the context of edge-computing-aided beyond 5G networks. The goal is to minimize the energy consumption of the overall system, comprising multiple User Equipment (UE), an access point (AP), and an edge server (ES), under constraints on the end-to-end service delay and the packet error rate performance over the wireless interface. To reduce the energy consumption, we exploit low-power sleep operation modes for the users, the AP and the ES, shifting the edge computing paradigm from an always on to an always available architecture, capable of guaranteeing an on-demand target service quality with the minimum energy consumption. To this aim, we propose an online algorithm for dynamic and optimal orchestration of radio and computational resources called Discontinuous Computation Offloading (DisCO). In such a framework, end-to-end delay constraints translate into constraints on overall queueing delays, including both the communication and the computation phases of the offloading service. DisCO hinges on Lyapunov stochastic optimization, does not require any prior knowledge on the statistics of the offloading traffic or the radio channels, and satisfies the long-term performance constraints imposed by the users. Several numerical results illustrate the advantages of the proposed method.

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。

↑