6G service-oriented space-air-ground integrated network: A survey  

作　　者：Nan CHENG Jingchao HE Zhisheng YIN Conghao ZHOU Huaqing WU Feng LYU Haibo ZHOU Xuemin SHEN 

机构地区：[1]School of Telecommunications Engineering,Xidian University,Xi’an 710071,China [2]School of Cyber Engineering,Xidian University,Xi’an 710071,China [3]Department of Electrical and Computer Engineering,University of Waterloo,Waterloo N2L 3G1,Canada [4]School of Computer Science and Engineering,Central South University,Changsha 410083,China [5]School of Electronic Science and Engineering,Nanjing University,Nanjing 210023,China

出　　处：《Chinese Journal of Aeronautics》2022年第9期1-18,共18页中国航空学报（英文版）

基　　金：supported by the National Key Research and Development Program of China(No.2020YFB1807700).

摘　　要：As an indispensable component of the emerging 6G networks,Space-Air-Ground Inte-grated Networks(SAGINs)are envisioned to provide ubiquitous network connectivity and services by integrating satellite networks,aerial networks,and terrestrial networks.In 6G SAGINs,a wide variety of network services with the features of diverse requirements,complex mobility,and multi-dimensional resources will pose great challenges to service provisioning,which urges the develop-ment of service-oriented SAGINs.In this paper,we conduct a comprehensive review of 6G SAGINs from a new perspective of service-oriented network.First,we present the requirements of service-oriented networks,and then propose a service-oriented SAGINs management architec-ture.Two categories of critical technologies are presented and discussed,i.e.,heterogeneous resource orchestration technologies and the cloud-edge synergy technologies,which facilitate the interoperability of different network segments and cooperatively orchestrate heterogeneous resources across different domains,according to the service features and requirements.In addition,the potential future research directions are also presented and discussed.

关 键 词：Mobile Edge Computing(MEC) Network Function Virtual-ization(NFV) Network slicing Service-oriented network Software Defined Network-ing(SDN) Space-Air-Ground Inte-grated Networks(SAGINs) 

分 类 号：TN929.5[电子电信—通信与信息系统]