KISTI Institutional Repository: Automatic handover control for distributed load balancing in mobile communication networks

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This item is licensed Korea Open Government License

dc.identifier.uri: http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=NART58377109

dc.description.abstract: Inthispaper,weproposeanauto-tuningofmobilityalgorithminthemobilecommunicationsystemsasaloadbalancingself-optimizationusecase.Thispaperpresentsadistributedapproachinwhichthetrafficloadcanbebalancedsystematicallybyutilizingtheeffectiveloadinformationofneighboringcells.Theproposedloadbalancingschemedetectsaloadimbalanceinthenetworkandresolvestheproblemautomaticallybycontrollingthehandoverparameterasanonlinearfunctionoftheloaddifference.Basedoncontroltheory,weanalyzetheadaptivebehavioroftheproposedcontrollerandderiveconditionforsystemstability.Resultsfromasymptoticanalysisandsimulationindicatethattheproposedlocalcontrollerofeachindividualcelleffectivelyachievestheglobalproperties,suchthattheloaddifferenceinthenetworkisstabilizedgloballywithinapredeterminedthreshold.Extensivesimulationresultsalsoshowthattheproposedschemeoutperformstheexistingmethodsbyreducingcallblockingrateoftheoverloadedcells.