面向边缘云高效能的移动终端计算迁移方法

Efficient mobile terminal computing offloading method oriented to edge cloud

计算迁移将部分计算密集型任务从本地迁移到云计算节点执行,解决移动终端资源受限和扩展资源的问题。针对目前多站点迁移现状,以开放式互联系统为基础,构建边缘云节点交付模型。基于此架构说明多站点计算迁移流程;通过对应用需求、终端计算能力和信道状态的分析,优化移动终端的发送功率和应用程序对CPU资源的占用;结合计算迁移时间、能耗等成本,实施合理迁移,以达到用户资源利用最优的目标。仿真结果表明,该策略能够大幅度节省移动终端的能耗,且不会带来额外时延,有效地提高了用户体验。

Computing offloading technology achieves the goal of resolving mobile terminal resources and expanding resources by migrating part of the computationally intensive tasks from local to the cloud computing node. In order to meet the current requirement of multi-site migration, the computing node model and delivery model of edge cloud are constructed based on the open system interconnection migration model. The delivery process of multi-site computing migration is explained based on this architecture. By analyzing the requirements, the computing capacity of the mobile terminal and the channel state, the transmitting power of the mobile terminal and the application′s occupation of CPU resources are optimized. According to the cost of calculating the time and energy required for migration, the reasonable migration is implemented to achieve the goal of optimal utilization of user resources. The simulation results show that this strategy can effectively save the energy consumption of mobile terminals, and it can effectively improve the user experience without any additional time delay.