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LTE-Advanced中基于载波聚合的无线资源管理的研究的中期报告.docx

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LTE-Advanced中基于载波聚合的无线资源管理的研究的中期报告 Abstract: ThisreportpresentstheresultsofresearchonwirelessresourcemanagementbasedoncarrieraggregationinLTE-Advanced.Theresearchaimstooptimizetheutilizationoftheavailablewirelessspectrumbyintelligentlyaggregatingmultiplecarriersforimproveddatatransmissionratesandqualityofservice(QoS).ThestudypresentsareviewofexistingliteratureoncarrieraggregationaswellasadetailedanalysisoftheschedulingalgorithmsandresourceallocationschemesusedforcarrieraggregationinLTE-Advanced.Thereportalsodiscussesthesimulationframeworkusedtoevaluatetheperformanceofvariouscarrieraggregationtechniquesandpresentspreliminaryresultsforarangeofscenarios. Introduction: Therapidgrowthofdatatrafficinwirelessnetworkshasnecessitatedthedevelopmentofnewtechnologiesthatcanincreasenetworkcapacityanddatatransmissionrates.CarrieraggregationisonesuchtechnologythathasbeenintroducedinLTE-Advancedtoaddressthischallenge.Carrieraggregationenablestheaggregationofmultiplecarriersoperatinginthesameordifferentfrequencybandstoincreasebandwidth,providinghigherdatatransmissionratesandimprovedQoSforusers. ResearchMethodology: Toevaluatetheperformanceofvariouscarrieraggregationtechniques,wefirstdevelopedasimulationframeworkthatincludesadetailedmodeloftheLTE-Advancedphysicallayer,MAClayerandscheduler.Thesimulationframeworkenablestheevaluationoftheperformanceofdifferentschedulingalgorithmsandresourceallocationschemesforcarrieraggregationinarangeofscenarios. Results: TheresultsofoursimulationsshowthatcarrieraggregationcanprovidesignificantimprovementsindatatransmissionratesandQoSforLTE-Advancednetworks.Thechoiceofschedulingalgorithmandresourceallocationschemecanhaveasignificantimpactontheperformanceofcarrieraggregation,withsomeschemesprovidingbetterperformancethanothersincertainscenarios. Conclusion: OurpreliminaryresultssuggestthatcarrieraggregationcanplayacriticalroleinimprovingthecapacityandperformanceofLTE-Advancednetworks.However,furtherresearchisneededtooptimizecarrieraggregationtechniquesfo