%0 Journal Article
%T ApplicationofContactGraphRoutinginSatelliteDelayTolerantNetworks
%A ZHU
%A Laitao
%A LI
%A Yong
%A ZHANG
%A Junxiang
%A WU
%A Jing
%A TAI
%A Xiao
%A ZHOU
%A Jianguo
%J 空间科学学报
%P 116-125
%D 2015
%R 10.11728/cjss2015.01.116
%X Satellitenetworkshavemanyinherentadvantagesoverterrestrialnetworksandhavebecomeanimportantpartoftheglobalnetworkinfrastructure.Routingaimedatsatellitenetworkshasbecomeahotandchallengingresearchtopic.Satellitenetworks,whicharespecialkindofDelayTolerantNetworks(DTN),canalsoadopttheroutingsolutionsofDTN.Amongthemanyroutingproposals,ContactGraphRouting(CGR)isanexcellentcandidate,sinceitisdesignedparticularlyforuseinhighlydeterministicspacenetworks.TheapplicabilityofCGRinsatellitenetworksisevaluatedbyutilizingthespaceorientedDTNgatewaymodelbasedonOPNET(OptimizedNetworkEngineeringTool).Linkfailuresaresolvedwithneighbordiscoverymechanismandrouterecomputation.EarthobservationscenarioisusedinthesimulationstoinvestigateCGR’sperformance.TheresultsshowthattheCGRperformancesarebetterintermsofeffectivelyutilizingsatellitenetworksresourcestocalculatecontinuousroutepathandalternativeroutecanbesuccessfullycalculatedunderlinkfailuresbyutilizingfaulttolerancescheme.
%K SatelliteDelayTolerantNetworks(DTN)
%K SpaceorientedDTNgateway
%K ContactGraphRouting(CGR)
%K Linkfailures
%U http://www.cjss.ac.cn/CN/abstract/abstract2114.shtml