無線局域網(wǎng)的頻譜分析和干擾抑制設(shè)計(jì).pdf

1、南京郵電大學(xué)碩士學(xué)位論文無線局域網(wǎng)的頻譜分析和干擾抑制設(shè)計(jì)姓名：王璐申請學(xué)位級別：碩士專業(yè)：電磁場與微波技術(shù)指導(dǎo)教師：朱洪波20100401南京郵電大學(xué)碩士研究生學(xué)位論文ABSTRACTABSTRACTAtpresentWLAN塒mitssuperiorflexibilityandconvenienceplaysanincreasinglyimportantroleinthenetworkapplicationHoweverinthem

2、arketmanyusersusethewirelessnetworkcardsaswellasotherwirelessaccessequipmentsinorderteducecostsandteducethetroubleofapplyingforspecialbandMostofthemareusingthecommunalISMbandTherefore，thelimitedfrequencybandwidthleadstot

3、hemutualinterferencebetweensystemsandwithinthesystemthenfmallyreducesnetworkperformanceandcausessafetyproblemsFirstthisdissertationdiscussesthebasictheoryofWLANandthespectrumallocationstrategyofthreestandardsIEEE8021la／b

4、／ginChinaDuetospectraloverlap，itleadstointerferenceanddegradescommunicationqualityNextthisdissertationanalyzesthes卸∞舊frequencyinterferenceandadjacentchannelinterference，aswellasinterferencebetweentheUWBandWLAN，andfiIlall

5、ysubstantiallysimulationshavebeencarriedouttoconfirmtheresultsAtlastseveralinterferencesuppressionmethodsareproposedforsuppressingdifferentinterferenceFirstSoRspectrumadaptation(SSA)algorithmisproposedtoachieveinterferen

6、cesuppressionbetweenUWBandWLAN，whichcaneffectivelyrestraintheinterferencebetweenthe8021lasystemandUWBNextbyoptimizingWLAN’SparameterlikefrequencyintervalandtheemissivepowerinterferencesuppressionisfulfilledFinallyaUWBant

7、enna、航mtrappedwavefunctionisdesignedteducetheinterferencebetweenWLANandothersystemsin5GIIzfrequencybandandWLANsecurityandreliabilityareimprovedKeywords：SpectrumAnalysis；InterferenceSuppression；UltraWideBand；SoftSpecmunAd