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1、1of5SimulationResultsforThird-GenerationHFAutomaticLinkEstablishmentEricE.JohnsonNewMexicoStateUniversityAbstractÐThethirdgenerationofHFautomationThispaperpresentstheresultsofaninitialinvestigationoftechnologywasdesignedtoefficientlysupporttheperformanceof3G
2、HFnetworks.First,thesalientchar-large,data-intensivenetworksaswellasthetradi-acteristicsof3Gtechnologyaresummarized.Thisisfol-tionalvoiceandsmallernetworkapplicationsoflowedbyadiscussionofthesimulationapproachusedinthissecond-generationHFnetworks.Theperforma
3、nceinvestigation,includingthepropagationmodel,networkto-goalsforthenewgenerationoftechnologywereor-pologies,andworkloadsthatwereemployed.Presentationder-of-magnitudeimprovementsinnetworksize,anddiscussionoftheresultsconcludethepaper.trafficthroughput,andsign
4、al-to-noiseratio(SNR).Third-generationtechnologyhasnowbeenstan-dardizedinMIL-STD-188-141BAppendixC.II.OVERVIEWOF3GTECHNOLOGYThispaperpresentsinitialresultsofsimulatingthird-generationHFnetworkswithvariousnetworkPreviouspapers[1,2,3]havediscussedmanyofthenove
5、ltopologiesandworkloads.TheNetSimsimulationsaspectsof3Gtechnology,andcompletedetailsmaybefoundemployavalidatedHFpropagationmoduleandade-inthestandard(MIL-STD-188-141BAppendixC).Thissec-tailedimplementationoftheprotocolsunderstudy.tionsummarizesthisliterature
6、,includingthosedetailsim-Analysisofthesimulationresultsindicatesthattheportanttounderstandingtheresultspresentedlater.newtechnologylinksfaster,carriesheaviertraffic,andscalesbetterthancurrentgenerationHFALE.A.WaveformsBothlinkinganddatatransferPDUsareconveye
7、dovertheI.INTRODUCTIONchannelbyafamilyofPSKwaveformsthatarederivedfromtheMIL-STD-188-110Aserial-tonemodem.Thenewwave-Thesecond-generationHFautomationstandardizedinMIL-formsareoptimizedforburstsratherthanlongtransmissions,STD-188-141AandFED-STD-1045providedar
8、obust,reli-whichgivesthesystemimprovedagility.Measurementsofable,andinteroperableALEtechnologythatledtoaresur-the3Gwaveformsindicate6Ð9dBimprovementinAWGNgenceofinterestinHFradioforlong-haulandm
