›› 2016, Vol. 36 ›› Issue (4): 38-.doi: 10.16708/j.cnki.1000-758X.2016.0038

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Performanceevaluationofroutingalgorithmsonspacedelay/disruptiontolerantnetworks

YAN  Hong-Cheng, GUO  Jian, ZHANG  Hong-Jun   

  1. InstituteofSpacecraftSystemEngineering,ChinaAcademyofSpaceTechnology,Beijing100094,China
  • Received:2015-10-08 Revised:2015-11-11 Online:2016-08-25 Published:2016-05-11

Abstract: Performanceofroutingalgorithmsonspacedelay/disruptiontolerantnetworks(DTN)wasevaluatedtoprovidedesignreferenceandadvicesforfuturedesignofroutingtechniquesonspaceDTN.Firstly,routingalgorithmsapplicabletospaceDTNwereanalyzedandcomparedinaspectofutilizationamountofnetworkknowledege.Then,frommicroscopicandmacroscopicaspects,fourtypicalspaceDTNroutingalgorithms,whichareearliestdelivery(ED),earliestdeliverywithlocalqueue(EDLQ),contactgraphrouting(CGR)andcontactgraphroutingearliesttransmissionopportunity(CGRETO),wereevaluatedbysimulationsinatypicalspaceDTNscenariowithdifferentcontactplanconfigurations.Finally,evaluationresultswereanalyzedandsummarized,andfutureresearchissuesaboutroutingalgorithmsonspaceDTNwerealsodiscussed.Simulationresultsindicatethatfromaspectsofendtoenddelayandbundledeliverycompletionratio,theperformanceofCGRisbetterthanEDwhiletheperformanceofEDLQandCGRETOarethesamebest.

Key words: spacedelay/disruptiontolerantnetworks, routingalgorithms, ED, EDLQ, CGR, CGRETO, performanceevaluation