移动边缘计算研究综述
2021-07-19王思晗刘亚志
王思晗 刘亚志
摘要:近年来,随着物联网技术的快速发展,不同类型的应用程序产生的数据量开始呈现爆炸式增长。移动终端有限的计算、存储资源,给用户使用带来不便。传统解决问题的方式是将需要处理的任务上传到远端云的服务数据中心,经过处理后,将计算结果回传到用户端。然而,对于一些计算密集型任务,这种解决问题的方式已经不能满足用户对服务响应时延等的高标准要求。边缘计算作为一种新范式,将云计算的IT资源下沉到网络边缘,解决了海量数据的传输与处理所带来的网络拥塞、增加网络延迟等问题。该文首先对移动边缘计算基本内容以及相关范例进行介绍,进一步对移动边缘计算系统的框架结构进行分析。然后,对移动边缘计算的相关工作进行介绍。最后,针对移动边缘计算中的研究提出了下一步研究方向。
关键词:移动边缘计算;任务卸载及资源分配;服务缓存
中图分类号:TN822 文献标识码:A
文章编号:1009-3044(2021)15-0048-02
Abstract: In recent years, with the rapid development of Internet of Things technology, the amount of data generated by different types of applications has begun to explode. The limited computing and storage resources of mobile terminals bring inconvenience to users. The traditional way to solve the problem is to upload the task that needs to be processed to the service data center of the remote cloud, after processing, the calculation result is sent back to the client. However, for some computationally intensive tasks, this solution can no longer meet users' high requirements for service response delays and so on. Edge computing, as a new paradigm, subsides IT resources of cloud computing to the edge of the network, and solves problems such as network congestion and network delay caused by massive data transmission and processing. This paper first introduces the basic content and relevant examples of mobile edge computing, and then analyzes the framework of mobile edge computing system. Then, the related work of moving edge calculation is introduced. Finally, the research direction of moving edge computing is proposed.
Key words: mobile edge computing; task offloading and resource allocation; service cache
1 移动边缘计算
近年来,随着车联网以及物联网的快速发展,多种多样的智能设备不断涌现,如智能家居、智能交通等,给人们的生活带来许多便利。然而,新兴的应用大多是复杂的应用程序,产生的数据量较多。思科估计,到2020年,全球将有大约500亿部联网设备,每天的数据量将会呈现爆炸式增长。随着用户对网络服务质量、服务请求时延等网络性能要求不断提高,资源受限的移动设备终端难以满足。
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