摘要
在星地协同网络中引入移动边缘计算(MEC)技术可有效提高用户体验质量和减少网络冗余流量,同时也带来了一些挑战。首先介绍了星地协同网络和MEC技术的基本架构,并讨论了在星地协同网络中引入MEC技术的动机和MEC的部署问题;然后提出了融合MEC的星地协同网络架构,并对其关键技术及典型应用进行了概述和分析;最后总结归纳了融合网络架构中的任务调度、移动性管理等关键挑战和一些开放性研究问题,期望对该领域的后续研究提出可供借鉴的新思路。
The introduction of mobile edge computing(MEC)technology in satellite-terrestrial networks can effectively improve the quality of user experience and reduce network redundant traffic,but also brings some challenges.Firstly,the basic architecture of satellite-terrestrial networks and MEC technology was introduced.Moreover,the motivation of introducing MEC into satellite-terrestrial networks and the deployment of MEC were discussed.Then,the architecture of MEC enabled satellite-terrestrial networks was proposed,and the key techniques and typical applications were summarized and analyzed.Finally,the key challenges such as task scheduling and mobility management and some open research issues in integrated networks were summarized.It hopes to provide new ideas for future research in this field.
作者
唐琴琴
谢人超
刘旭
张亚生
何辞
李诚成
黄韬
TANG Qinqin;XIE Renchao;LIU Xu;ZHANG Yasheng;HE Ci;LI Chengcheng;HUANG Tao(State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications,Beijing 100876,China;Purple Mountain Laboratories,Nanjing 211111,China;The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,China)
出处
《通信学报》
EI
CSCD
北大核心
2020年第4期162-181,共20页
Journal on Communications
基金
国家重点研发计划基金资助项目(No.2019YFB1804403)
广东省重点研发计划基金资助项目(No.2018B010113001)。
关键词
星地协同网络
边缘计算
任务调度
移动性管理
satellite-terrestrial network
edge computing
task scheduling
mobility management
