2024年1月第1期13移动涵信2024,48(1):13-18.YANGHuiting,LIUWei.Time-VaryingGraphModelingMethodforSpaceInformationNetworks[J].MobileCommunications,引用格式:杨惠婷,刘伟.空间信息网络时变图建模方法[J].移动通信,2024,48(1):13-18.文章编号:1006-1010(2024)01-0013-06文献标志码:ATN929.5OSID:扫描二维码与作者交流总第521期第48卷空间信息网络时变图建模方法*杨惠婷,刘伟(西安电子科技大学,陕西西安710000)【摘要】空间信息网络是星地融合网络中一个重要组成部分,其拓扑具有时变性和可预测性。采用一个合适的时变图模型来表征时变的空间信息网络,对于空间信息网络性能分析至关重要。首先阐述了空间信息网络的特性,然后介绍了多种空间信息网络时变图模型的建模方法,包括快照序列图、时间扩展图、存储时间聚合图和多功能时间扩展图,并且分析了它们的特征和优缺点,为6G星地融合网络的研究奠定基础,为网络性能分析提供了理论支撑【关键词】星地融合网络;空间信息网络;时变图doi:10.3969/j.issn.1006-1010.20231130-0002中图分类号Time-VaryingGraphModelingMethodforSpaceInformationNetworksYANGHuiting,LIUWei(XidianUniversity,Xi'an710000,China)[Abstract]Asacriticalcomponentofsatellite-terrestrialintegratednetworks,spaceinformationnetworksexhibittime-varyingandpredictablecharacteristicsintheirnetworktopology.Theselectionofanappropriatetime-varyinggraphmodeliscrucialforaccuratelycharacterizingthisvariabilityandfortheperformanceanalysisofspaceinformationnetworks.Thispaperfirstcomprehensivelydescribesthefundamentalpropertiesofspaceinformationnetworks.Itthendelvesintovariousmodelingmethodsoftime-varyinggraphmodelswithinthesenetworks,includingsnapshotsequencegraphs,time-expandedgraphs,stored-timeaggregatedgraphs,andmultifunctionaltime-expandedgraphs.Byanalyzingthecharacteristics,strengths,andweaknessesofthesemodels,thisstudylaysasolidtheoreticalfoundationforthein-depthresearchof6Gsatellite-terrestrialintegratednetworksandprovidessignificanttheoreticalsupportfornetworkperformanceanalysis.[Keywords]satellite-terrestrialintegratednetwork;spaceinformationnetwork;time-varyinggraph0引言未来6G网络的关键特征和期望之一是提供全球无缝覆盖,...