摘要
随着新型电力系统的建设,电力业务的种类和数据量快速增长,大量业务流量需要卸载到电力5G-MEC边缘云进行处理,如何保障电力业务的差异化流量卸载时延需求成为一个亟待解决的问题。文章结合电力业务的差异化时延需求和5G核心网服务功能,构建了电力5G-MEC边缘云架构。以最小化业务流量卸载总时延加权和为目标,构建了边缘云低时延业务流量卸载优化问题模型,并提出基于业务优先级成本调节的5G-MEC边缘云流量卸载优化方法求解。仿真结果表明,所提方法能够降低业务流量卸载总时延加权和,解决低优先级业务与高优先级业务之间的流量卸载竞争问题,保障电力业务差异化时延需求。
With the construction of new power systems,the types and data volumes of power services are growing rapidly.Massive service traffics need to be offloaded to the power 5G mobile edge computing(5G-MEC)edge cloud for processing.How to ensure the differentiated delay requirements of power services has become an urgent problem to be solved.In this paper,a framework of power 5G-MEC edge cloud by combining the differentiated delay requirements of power services and 5G core network service function is constructed.First,the low-latency service traffic offloading optimization model for the edge cloud to minimize the weighted sum of the total delay of service traffic offloading is formulated.Then,a service priority cost adjustment-based traffic offloading optimization algorithm for the 5G-MEC edge cloud is proposed to address the formulated optimization model.Simulation results demonstrate that the proposed algorithm can reduce the weighted sum of the total delay of service traffic offloading,and address the traffic offloading conflicts between the low-priority service and high-priority service,thereby ensuring the differentiated delay requirements of power services.
作者
张瑞兵
韩金侠
马宝娟
曾姝彦
刘恒
刘朋矩
ZHANG Ruibing;HAN Jinxia;MA Baojuan;ZENG Shuyan;LIU Heng;LIU Pengju(China Electric Power Research Institute Co.,Ltd.,Haidian District,Beijing 100192,China)
出处
《电力信息与通信技术》
2023年第8期22-28,共7页
Electric Power Information and Communication Technology
基金
国家电网有限公司总部科技项目资助“基于5G混合业务场景应用关键技术研究”(5700-202255477A-2-0-KJ)。
