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1、AbstractWirelessnetworkswillcontainavarietyofwirelessaccesstechnologiesinthefuture，thesedifferentnetworkswithoverlappingareaarecalledheterogeneousnetworks(Hetnets).Asoneofthekeytechnologiesofheterogeneouswirelessnetworks,loadbalancingisasignificantmethodtoachievetheeffectiv
2、eresourceutilization,enlargesystemcapacity,andavoidnetworkcongestion.Thisthesismainlystudiesloadbalancingalgorithminheterogeneouswirelessnetworks.First,theheterogeneouswirelessnetworkarchitectureisbrieflyintroducedandthreearchitecturesofjointradioresourcemanagementarediscus
3、sed.Second,basedonthecurrentresearchofloadbalancingalgorithminheterogeneousnetworks,aloadbalancingalgorithmbasedonutilityfunctionsandfuzzylogicisdiscussed,thealgorithmcombinedthreeutilityfunctionswithfuzzylogicmethodtocompleteloadbalancing.Simulationresultsshowthatthefuzzyl
4、ogicloadbalancingalgorithmperformsmuchbetterthanthealgorithmwithoutloadbalancingandMLBalgorithmwithrespecttothesystemblockingprobability,averagetransmissiontimeandnetworkloadrate.Third,becauseofthediversityofservicesinheterogeneousnetworks,inordertoachieveloaduniformdistrib
5、ution,aswellastoensurethequalityofservices,QoS-Awarebalancingalgorithmisdiscussed.Afterthesimulation,itisprovedthattheQoS-Awarealgorithmhasasignificantincreaseinnetworkperformancecomparedwithotheralgorithms.Keyword:HeterogeneousWirelessNetworksLoadBalancingFuzzyLogicQuality
6、ofService目錄第一章緒論................................................................................................................11.1引言...............................................................................................................11.2論文選題及研究意義................
7、...................................................................21.3本文主要工作和內(nèi)容安排...........................................................................2第二章異構(gòu)網(wǎng)絡(luò)架構(gòu)及負(fù)載均衡現(xiàn)狀....................................................................52.1異構(gòu)網(wǎng)絡(luò)融合架構(gòu)....................
8、...................................................................52.1.1異構(gòu)網(wǎng)絡(luò)場景...
