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1、INVITEDPAPEREHFforSatelliteCommunications:TheNewBroadbandFrontierThecurrentstateofresearchandtechnologyinEHFsatellitecommunicationsarediscussedinthispaperalongwithrelatedfutureperspectives,applications,andservices.ByErnestinaCianca,MemberIEEE,TommasoRossi,AsherYahalom,YosefPinhasi,JohnFarserotu,Sen
2、iorMemberIEEE,andClaudioSacchi,SeniorMemberIEEEABSTRACT
3、Theexploitationofextremelyhigh-frequencyKEYWORDS
4、Extremelyhigh-frequency(EHF);satellitecom-(EHF)bands(30–300GHz)forbroadbandtransmissionovermunications;satellitenetworkingsatellitelinksiscurrentlyahotresearchtopic.Inparticular,theQ-Vband(30–50
5、GHz)andW-band(75–110GHz)seemtoofferI.INTRODUCTIONverypromisingperspectives.ThispaperaimsatpresentinganoverviewofthecurrentstatusofresearchandtechnologyinIntheperspectiveofreachingglobalandubiquitousEHFsatellitecommunicationsandtakingalookatfuturewirelessconnectivity,thesatellitesegmentwillplayakeyp
6、erspectivesintermsofapplicationsandservices.Challengesrole.Theclaimedobjectiveistoreachso-calledBgigabitandopenissuesareadequatelyconsideredtogetherwithsomeconnectivity[inordertomakethesatellitesegmentaviablesolutionsandfuturedevelopments.TheproposedpotentialBbackboneintheair[fornext-generationdigi
7、talanalysishighlightedtheneedforareliablepropagationmodelcommunicationservices,characterizedbyhigh-speedandbasedonexperimentaldataacquiredinorbit.Othercriticalstringentquality-of-service(QoS)requirements[1].SuchaspectsshouldbefacedatthePHY-layerlevelinordertoanambitiousobjectiveisnotrealisticallyac
8、hievablebymanagethetradeoffbetweenpowerefficiency,spectraleffi-exploitingcurrentlysaturatedbandwidthportions(Kuandciency,androbustnessagainstlinkdistortions.Asfarasnet-Kabands).Forthisreason,thepushtowardshigherworkingaspectsareconcerned,thelargebandwidthfrequencieswillcharacterizefutureR&Donsatell
9、iteavailabilityshouldbeconvertedintoincreasedthroughputbycommunications[2].ThepropheticconsiderationofmeansofsuitableradioresourcemanagementandtransportW.E.Morrow,reportedintheissuescanningofPro-protocols,a
