AbstractPAGE\*MERGEFORMATIabstractPAGE\*MERGEFORMATII宽带接入网设计方案研究与分析论文摘要电信网发展到今天，正在进入一个新的转折点，呈现出宽带化、IP化及业务融合化的趋势。电信网宽带化首当其冲的就是接入网的宽带化。近几年，为了适应新时期下社会发展的需求,并且满足人们在生活中与工作中对网络的要求，接入网的宽带化加快了步伐，正在向着多样化的方向发展，涌现出各种各样的宽带接入技术,这些宽带接入技术各自有着自身的一些特点,在选择的时候应该结合实际的需要来进行选择。现对宽带接入网进行了探讨。本文首先叙述了接入网的基本概念，然后介绍了主流宽带接入技术，接着着重描述了ADSL的可行性分析及其接入网的网络设计，并对它进行性能分析，提出改进方式。关键词：接入网，发展，ADSLPAGE\*MERGEFORMATIIIPAGE\*MERGEFORMAT2AbstractThetelecommunicationnetworkdevelopmenttotoday,isenteringanewturningpoint,showingabroadband,IPandbusinessintegrationtrend.Telecombroadbandnetworkisbethefirsttobearthebruntofthebroadbandaccessnetwork.Inrecentyears,inordertomeettheneedsofsocialdevelopmentinthenewperiod,andmeettherequirementsofnetworkinlifeandwork,andbroadbandaccessnetworktospeedupthepace,isdevelopingtowardsthedirectionofdiversification,theemergenceofavarietyofbroadbandaccesstechnology,thewidebandaccesstechnologyhavetheirownsomecharacteristicsthe,inthechoiceofwhenshouldbecombinedwiththeactualtochoose.Thebroadbandaccessnetworkisdiscussed.Thispaperdescribesthebasicconceptofaccessnetwork,thenintroducesthemainbroadbandaccesstechnology,andthenfocusesonthenetworkdesignfeasibilityanalysisandaccessnetworkADSL,anditsperformanceanalysis,putforwardtheimprovementway.Keywords:Accessnetwork,development,ADSLPAGE\*MERGEFORMAT1目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc16926"摘要PAGEREF_Toc16926IIHYPERLINK\l"_Toc14754"AbstractPAGEREF_Toc14754IVHYPERLINK\l"_Toc19678"第一章接入网的基本概念PAGEREF_Toc196781HYPERLINK\l"_Toc25918"1.1电信网的构成PAGEREF_Toc259181HYPERLINK\l"_Toc10129"1.2接入网的定义PAGEREF_Toc101291HYPERLINK\l"_Toc31027"1.3接入网的结构功能PAGEREF_Toc310271HYPERLINK\l"_Toc18861"第二章宽带接入网中几种技术的比较PAGEREF_Toc188611HYPERLINK\l"_Toc6795"2.1ADSL接入技术PAGEREF_Toc67951HYPERLINK\l"_Toc27073"2.2基于HFC网（光纤和同轴电缆混合网）的CableModem技术PAGEREF_Toc270731HYPERLINK\l"_Toc23710"2.3光纤接入技术PAGEREF_Toc237101HYPERLINK\l"_Toc12477"2.4无线接入技术PAGEREF_T