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ID:32147286
大小:5.40 MB
页数:48页
时间:2019-01-31
《基于滑动窗口的随机线性网络编码分析》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、札I.L壬■上c二曲毛孵宁1;孽,。抽壬寻t,i牛苫汪{掣罐垂章重疆{{■虮t^咏+善}抽壬舟{张耀蚌群礴徒弹潞啡1薄莲忡●●Lf啤瓠“*E融衿__lr■上■晴31,.州罐瀵H.“审潼囊珏辩群摇巍伸∥“1J4泞■谨了哼H江慵僖哩呵0憩】_■_1ABSTRACTThisPaperfirstdescribedtheresearchofnetworkcoding,andareviewwasgivenaboutthecalssficationandanalysisofclassicpraticalnetworkcoding.Batch—basedra
2、ndomIinearnetworkcoding(BBRLNC、carlimprovenetworkthroughputinthewirelessnetwork.butithastheextremelychallengetodecidetheOptimaltimetomovetothetransmissionofthenextbatch.Toimprovenetworkthroughputadvancely,Slidingwindow—basedrandomlinearnetworkcoding(SW_RLNC)wasproposedYetth
3、ereiSnotanyresearchabouttheaffectofslidingwindowsizeandstepsizetothenetworkperformancesuchasthroughputanddecodedelay.WeobservedthatbecauseofSWRLNCalwaysaddneworiginalpacketsitwillcauseaseriesoforiginalpacketsCan’timmediatelydecoded,whichcausethepacketsthatreceivenodeneedtoc
4、acheincreaseandthedecodematrixanddecodedcomplexincrease.ThispaperanalysisthethroughputandpacketdecodedelayofSWRLNCandBBRLNCinlossyandlossy—freenetworkenvironmentAndtheresultsshowthatwhentheparameterswasselectedproperly,thethroughputandpacketdecodedelayCangetbetterperformanc
5、ethanBBRLNCTherelationshipofnetworkperformanceandSWRLNCparameterswillgivenwhenthethourghputanddecodedelaywasoptimalandthesimulationresultsvalidatedthetheoreticanalysis.TovalidatetheperfornqanceofSWRLNCwhenconsideringtheaffectofdi行erent1ayer,weimplementBBRLNCandSWRLNCmNsclic
6、ksimulatorandgettheperformanceofthemTheresultsshowthatSWRLNCmaynotOUtoerformancethanBBRLNCasthoriticaIresults.TovalidatetheaffectofACK.wecomparedtwokindsofACKfeedbackmannerandthesimulationresultsshowsthatSWRLNCexistseriousACKanddatapacketcollicionandthetransmissionoftheACKp
7、acketwillreduceSW_RLNCthroughput.SowhenapplicatingSWRLNCtorealnetworkapplication,wecan’tsimplyconsidertheaffectofroutinglayer,butalsotheaffectofotherlayerneedtoconconside.Theresearchresulthasagoodreferencevalueforpraeiticallyapplicatingnetworkcoding.KEYWORDS:SW_RLNC,sliding
8、windowsize,stepsize,BBRLNC,decodedlink目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯IABSTRACT⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
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