典型文献
Network Element Placement for Space-Air-Ground Integrated Network:A Tutorial
文献摘要：
With the demand for Internet connectiv-ity in remote areas,the space-air-ground integrated net-work(SAGIN)was proposed to achieve ubiquitous cover-age and enhance service capabilities of extant terrestrial networks.The paradigm of virtual network element place-ment(NEP)is applied into SAGIN.It can save energy and operating costs by placing specific network elements(NEs)as software instances.In addition,it helps to provide services in end-to-end networks with its ability to allocate and manage resources flexibly.However,NEP faces some challenges in SAGIN.The network topologies can be dynamic,and links such as the satellite-to-ground and air-to-ground ones are prone to fail.These will make NEP management more complicated.Moreover,the stat-ic NEP schemes are hard to accommodate the time-vary-ing traffic.In this context,this work explains the NEP problem in SAGIN from three aspects,i.e.,the SAGIN radio access network(RAN),the SAGIN core network(CN),and the SAGIN barrier network(BN).First,the physical and networking architectures of SAGIN are in-troduced.Then the status of the network element place-ment and corresponding challenges are described from these two aspects.Finally,this paper discusses future re-search directions and key technical challenges.
文献关键词：
中图分类号：
作者姓名：
GENG Yuhui;CAO Xianbin;CUI Huanxi;XIAO Zhenyu
作者机构：
School of Electronic and Information Engineering,Beihang University,Beijing 100191,China
文献出处：
引用格式：
[1]GENG Yuhui;CAO Xianbin;CUI Huanxi;XIAO Zhenyu-.Network Element Placement for Space-Air-Ground Integrated Network:A Tutorial)[J].电子学报（英文）,2022(06):1013-1024
A类：
Tutorial,connectiv,NEs
B类：
Network,Element,Placement,Space,Air,Ground,Integrated,With,demand,Internet,remote,areas,space,air,ground,integrated,SAGIN,was,proposed,achieve,ubiquitous,cover,enhance,capabilities,extant,terrestrial,networks,paradigm,virtual,place,NEP,applied,into,It,can,save,energy,operating,costs,by,placing,specific,elements,software,instances,addition,helps,provide,services,end,its,ability,allocate,resources,flexibly,However,faces,some,challenges,topologies,dynamic,links,such,satellite,ones,prone,fail,These,will,make,management,more,complicated,Moreover,schemes,hard,accommodate,vary,traffic,this,context,explains,problem,from,three,aspects,radio,access,RAN,core,CN,barrier,BN,First,physical,networking,architectures,troduced,Then,status,corresponding,described,these,Finally,paper,discusses,future,search,directions,key,technical
AB值：
0.566309
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
