›› 2017, Vol. 37 ›› Issue (1): 11-18.doi: 10.16708/j.cnki.1000-758X.2017.0003

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AconceptionofVLANspatialnetworkingundercooperativecontrol

 CHENG  Yu, HU  Wei-Duo*   

  1. SchoolofAstronautics,BeihangUniversity,Beijing100191,China
  • Received:2016-05-18 Revised:2016-08-26 Online:2017-02-25 Published:2016-11-24

Abstract: Basedonlongtimedelay,highdynamicnature,andlimitedresourcesofthesatellitenetwork,aspacevirtuallocalareanetwork(VLAN)divisionmethodundercooperativecontrolwasproposedtoimplementspatialinformationnetwork.Firstly,toimprovetheutilizationrateofsatellitebandwidthandcomputingresources,satellitenetworkwasdividedintoseveralVLAN.Secondly,theroutingalgorithmwascombinedwithconsistencyalgorithmtoachievehigherreliabilityinsatellites′mutualconnectionandcommunication.Whenappliedtospatialsatellitenetwork,thealgorithmcanachievestrongconnectivitybetweeneachnode;whenappliedtoasinglesatellite,itcanhelpinintraarealoadbalanceandredundantbackup.Finally,examplesweregiventodemonstratetheeffectivenessoftheproposedalgorithmforbothspacenetworkandasinglesatellite.Theresultsshowthatallsatellitescanconvergencetotheirplannedorbitin50secondsandthenetworkcanachieveastablespacestructure.

Key words: virtuallocalareanetwork, spatialinformationnetwork, cooperativecontrol, consistencyalgorithm, routingalgorithm, networking