基于认知无线电的分步式博弈低轨卫星频谱共享策略研究

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中图分类号：TP183；TN711 文献标志码：A文章编号：1003-3114（2025）04-0724-09

doi：10.3969/j. issn. 1003-3114.2025. 04.008

Abstract：This paperinvestigatesdynamicspectrumallcation strategiesunder theconditionof non-synchronous usageamong low earthorbitmulti-constelations.Itproposesaiterativegme-baseddynamicmatchingalgorithmforidlespectrumamongmultiplelow earthorbitsateliteswitinaognitivediosstem.Tefirstlayeutilisadnamiconoperativegameundercompeteifoatio betweenhighpriorityonstelltionsandlow-prorityconstellaions，rachingacocusiontatspetumsharingstrategyaninease spectrumutilizationbyobtaining Nashequlibrium.Inthesecondlayer，anon-completeinformationbilateralbidingauctiongame modelisconstrucdetnultiplelow-proityonstelationdmadsndidlespecrofgprirityostelliosBbiningthecharacteristicofthegreedyalgoritmthatderivesagobaloptimalsolutionfromlocaloptimalsolutions，significantprovements in idle spectrum utilization rate are achieved in both the time domainand frequency domain.

Keywords：dynamic spectrum allocation strategy; cognitive radio; game theory; spectral efficiency

0 引言

随着全球对高速互联网接入和通信服务需求的增长，低轨卫星星座的数量正在显著增加。（剩余12806字）