基于认知无线电的动态频谱共享算法研究

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1、哈尔滨工业大学工学硕士学位论文AbstractRadiofrequencyspectrumisthefoundationalstrategicresourcesforwirelesscommunicationssystems,butwiththedevelopmentofcommunicationtechnology,thenewservicesanddevicesofradiotechnologieshaveincreasedrapidly,sothattheoriginalscarceradi

2、ospectrumresourcebecomesmorestrained.Theunbalancedandinefficientutilizationofspectruminthetraditionalstaticspectrumallocationstrategymakestheproblemworse,limitingthefurtherdevelopmentofcommunicationtechnology.Becauseofthesuperiorityofcognitiveradioint

3、heaspectsofspectrumsensing,spectrumsharingandspectrummanagementandspectrummobility,ithasbecomethehottechnologyofthestudyfornext-generationwirelesscommunication.Cognitiveradiobaseddynamicspectrumsharingcanreusethenon-renewablespectrumresource.Thedynami

4、cspectrumsharingalgorithmineconomicframeworkwillbethefocusinthispaper.Itcanbringnewhopesforresolvingtheshortageofspectrumresource,andopenthesecondspectrummarketfortheauthorizedsystemowners,reducingoperationalcostsandincreasingrevenues.Italsocancreatea

5、fairenvironmentforoperatorsofnewtechnologiesandnewbusiness,andprovideareasonablemechanismforthecoexistenceofmulti-servicesinopeningbands.HowtoincreasethesystemgainandensuretheQoSofusersarestudiedin-depth.Allthestudyinthisthesisofdynamicspectrumsharing

6、areasfollows:Inthisdissertation,firstly,thebackgroundofcognitiveradioandthesignificanceofthisresearchareintroduced.Thekeytechnologiesofcognitiveradioandtheclassificationofspectrumsharingaresummarized.Thenwedescribeandanalyzethedomesticandforeignresear

7、chesinseveralspectrumsharingmodels.Combinedwiththemajorproblemsfacedinspectrumresource,weelaboratethekeyrolesofspectrumsharinginthefuturedevelopmentofcommunicationtechnology.Thebasicconceptsofgametheory,pricingandmarkettheoryandsemi-Markovdecisionproc

8、essarethendescribedinchapter2,whichareassociatedwiththemodelinginthispaper.Ourmainworkinthispartareasfollows:TheclassificationofgametheoryandtheNashequilibriumdefinitionofthecorrespondingclassareintroduced.WealsofocusonthesolutionmethodsofNash