《Route strategy of satellite network in GNSS based on topology evolution law》.pdf

JournalofSystemsEngineeringandElectronics EXCLUSIVELYA、，AILABLEVIA Vo1．25，No．4，August2014，PP．596-608 ¨EEE ，0l厂e@ 0 DIGITALLIBRARY RoutestrategyofsatellitenetworkinGNSSbasedon topoloqyeveIutJonIaw 1 一 ’ XianqingYi’，ZhenweiHou，TaoZhong ，YaohongZhang ，andZhiliSun 1．ScienceandTechnologyonInformationSystemsEngineeringLaboratory,NationalUniversityof DefenseTechnology,Changsha410073，China； 2．CentreforCommunicationSystemsResearch，UniversityofSurrey，GuildfordGU27XH，UK Abstract：As eachtype ofsatellite network has differentlink through these links．However．the ISLsbasedon—board features．its data transmission mustbe designedbased on jts processing／dataexchangealsoraiserouteissues．oneof linkfeaturesto improvetheefficiency ofdata transfefling．The whichisabouthow todesignanappropriaterouteproto— transmissionofnavigationintegratedservicesinformation (NISI) co1．RouteprotocoldesignforGNSS networksmustbe Inaglobalnavigationsatellitesystem (GNSS1withinter．satellite managed inanoptimizedway asthesatelliteresources Iinks(ISLs)isstudiedbytakingthereaIsituationofinter—satellite isusually limited and expensive．Therelative mobility communicationIinksintoaccount．Anon—demandcomputingand bufferingcentralizedroutestrategyisproposedbasedondynamic between sat