A Novel Call Admission Control Algorithm for Next Generation Wireless Mobile Communication

Int. J. Rough Sets Data Anal. Pub Date : 2017-07-01 DOI:10.4018/IJRSDA.2017070106

T. A. Chavan, P. Saras

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引用次数: 29

Abstract

Wireless communication technology is progressing very vastly. With this change in technology customerservicesformultimediaandnon-multimediaareincreasingdaybyday.Butduetolimited resourcesofthewirelessnetwork,weneedtodesignanefficientCACalgorithmtoenhanceQoS levelsforendusers.TheQualityofservice(QoS)enhancementinthewirelessnetworkisrelatedto makinganefficientuseofcurrentnetworkresourcesandtheoptimizationoftheusers.Callacceptance inCACisoneofthechallengeinmobilecellularnetworkstoensurethattheacceptanceofanew callintoaresourcelimitedwirelessnetworkshouldnotdeviatetheservicelevelAgreement(SLAs) atthetimeofconversations.Inthenextgenerationwirelessnetwork,CAChasthedirectimpacton QoSforusercalls&overallsystemperformance.Tohandlehandoffcallsandnewcallsincellular networkchannelreservationschemehavebeenalreadyproposedtoreservesystembandwidthfor higherprioritycallforCAC.Thisearlierproposedschemeisnotaspertherequiredlevelofsatisfaction becausetheavailablereversedbandwidthisnotallocatedproperlyincaseofleasthandoffrate.In this,theauthorsliketopresentanewchannelborrowingschemewherenewnonrealtime(NRT) callscanmakeuseofreservedchannels.Itcanborrowthisreservedchannelonatemporarybasis andafterthisimmediatelyifanyhandoffcallentersthecurrentcellandnoanyotherchannelsare available,thenitwillpre-emptthechannelfromanearlierborrowedNRTuserifexists.ThispreemptedNRTcalliskeptinthepriorityqueuetoconsideritsservicewhenanychannelbecomesfree. ThenumberofNRTcallsinthequeueshouldnotbelargetoavoiddelayedservice.Thefundamental objectiveoftheproposedschemetodesignofthesystemforevaluatingtheresultsandcomparing withtheresultsoftheexistingsystem.Fromtheresultsofcurrentresearchwork,itisobservedthat proposedschemedecreasescalldroppingprobabilitywhichincreaseslightlyincallblockingrate overhigh-densityhandoffcallrate. KeyWoRDS Bandwidth Reservation, Call Admission Control, Channel Borrowing Method, Handoff Calls, Non Real Time Calls, Real Time Calls

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一种新的下一代无线移动通信呼叫接纳控制算法

无线通信技术正在取得巨大的进步。随着技术的变化customerservicesformultimediaandnon-multimediaareincreasingdaybyday。Butduetolimited resourcesofthewirelessnetwork，weneedtodesignanefficientCACalgorithmtoenhanceQoS levelsforendusers.TheQualityofservice(QoS)enhancementinthewirelessnetworkisrelatedto makinganefficientuseofcurrentnetworkresourcesandtheoptimizationoftheusers。Callacceptance inCACisoneofthechallengeinmobilecellularnetworkstoensurethattheacceptanceofanew callintoaresourcelimitedwirelessnetworkshouldnotdeviatetheservicelevelAgreement(sla) atthetimeofconversations。Inthenextgenerationwirelessnetwork，CAChasthedirectimpacton QoSforusercalls&overallsystemperformance。Tohandlehandoffcallsandnewcallsincellular networkchannelreservationschemehavebeenalreadyproposedtoreservesystembandwidthfor higherprioritycallforCAC。Thisearlierproposedschemeisnotaspertherequiredlevelofsatisfaction becausetheavailablereversedbandwidthisnotallocatedproperlyincaseofleasthandoffrate。In this，theauthorsliketopresentanewchannelborrowingschemewherenewnonrealtime(NRT) callscanmakeuseofreservedchannels。Itcanborrowthisreservedchannelonatemporarybasis andafterthisimmediatelyifanyhandoffcallentersthecurrentcellandnoanyotherchannelsare可用，thenitwillpre-emptthechannelfromanearlierborrowedNRTuserifexists.ThispreemptedNRTcalliskeptinthepriorityqueuetoconsideritsservicewhenanychannelbecomesfree。ThenumberofNRTcallsinthequeueshouldnotbelargetoavoiddelayedservice。Thefundamental objectiveoftheproposedschemetodesignofthesystemforevaluatingtheresultsandcomparing withtheresultsoftheexistingsystem。Fromtheresultsofcurrentresearchwork，itisobservedthat proposedschemedecreasescalldroppingprobabilitywhichincreaseslightlyincallblockingrate overhigh-densityhandoffcallrate。关键词:带宽预留，呼叫准入控制，通道借用方法，切换呼叫，非实时呼叫，实时呼叫

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Int. J. Rough Sets Data Anal.

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