GE Haibo, FENG Anqi, WANG Yan. Workflow task offloading strategy in 5G edge computing environment[J]. 2020, (8): 130-133+137. DOI: 10.13873/J.1000-9787(2020)08-0130-04.
5G边缘计算环境下工作流任务的卸载策略
摘要
针对5G移动边缘计算(MEC)场景下的卸载策略高时间复杂度问题
提出结合深度学习的计算卸载算法HCOGA。该算法将移动服务建模为工作流模型
通过改进非支配遗传算法联合优化工作流模型的开销。为适应5G实时环境
HCOGA算法通过深度神经网络拟合改进非支配遗传算法输入、输出间的非线性关系
构成完备的卸载预测模型
可以快速、准确地做出卸载决策。仿真结果表明:HCOGA算法运行时间较短
能有效降低系统开销。
Abstract
Aiming at the high time complexity problem of the offloading strategy in 5 G mobile edge computing( MEC) scenarios
a computing offloading algorithm HCOGA combined with deep learning is proposed. This algorithm models mobile services as a workflow model
and jointly optimizes the overhead of the workflow model through improving non-dominated sorting genetic algorithms( NSGA-Ⅱ) . In order to adapt to the 5 G real-time environment
HCOGA algorithm fits non-linear relationship between input and output of NSGA-Ⅱ through deep neural network to form a complete offloading prediction model
which can make offloading decisions quickly and accurately. Simulation results show that the HCOGA algorithm has a shorter running time and can effectively reduce system overhead.