英文文献检索实验三

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1、实验三：外文（数据库）信息资源的检索（报告）专业：法学班级:学号：姓名：一、实验目的：1.了解外文信息资源的概况及图书馆数据库的购置状况；2.掌握相关外文信息资源的检索技术与检索方法。二、实验内容：1.Springer数据库的收录特点与使用方法2.网络全文数据库EBSCOhost检索。3.万方数据检索三、实验题目：同实验一查阅某一著者的文献四、实验要求：1.利用"Springer数据库”检索你所选课题的检索2000年以来的相关的英文期刊论文的摘要及全文一篇（将论文正文第一页第一段下载）（1）提示：检索思路（期刊论文为例）hg：〃202.199.233.12-点“”T点“Spring

2、erLink"T请选择检索范围（文献类型：期刊）T论文题名（用截词检索方法输入一英文检索词）T显示检索结果T点击某一篇论文T显示摘要（注意判断是否原文为英文，是否为2000以后收录的期刊论文）。（2）检索结果①期刊论文：论文名：ImplemerrtationofaHighThroughput3GPPTurboDecoderonGPU著者名：MichaelWu•YangSun•GuohuiWang-JosephR・Cavallaro刊名:JSignProcessSyst年：2011卷:期:65刊载页码：171T83摘要：Turbocodeisacomputationallyinten

3、sivechannelcodethatiswidelyusedincurrentandup-comingwirelessstandards・Genera丨-purposegraphicsprocessorunit(GPGPU)isaprogrammablecommod-ityprocessorthatachieveshighperformancecomputa-tionpowerbyusingmanysimplecores.Inthispaper,wepresenta3GPPLTEcompliantTurbodecoderac-celeratorthattakesadvantage

4、oftheprocessingpowerofGPUtoofferfastTurbodecodingthroughput.Sev-eraltechniquesareusedtoimprovetheperformanceofthedecoder・Tofullyutilizethecomputationalre-sourcesonGPU,ourdecodercandecodemultiplecodewordssimultaneously,dividetheworkloadforasinglecodewordacrossmultipiecores,andpackmuI-tipiecodew

5、ordstofitthesingleinstruetionmultipiedata(SIMD)instruetionwidth.Inaddition,weusesharedmemoryjudiciousIytoenablehundredsofcon-currentmultipiethreadswhilekeepingfrequentIyuseddataIocaItokeepmemoryaccessfast・ToimproveefficiencyofthedecoderinthehighSNRregime,wealsopresentalowcomp丨exityearlytermina

6、tionschemebasedonaverageextrinsicLLRstatisties・Finally,weexaminehowdifferentworkloadpartitioningchoicesaffecttheerrorcorrectionperformanceandthede-coderthroughput.论文第一页第一段正文为：Turbocode[1]hasbecomeoneofthemostimpor-tantresearchtopicsincodingtheorysinceitsdiscov-eryin1993.Asapracticalcodethatcan

7、offernearchannelcapacityperformanee,Turbocodesarewidelyusedinmany3Gand4GwirelessstartdardssuchasCDMA2000,WCDMA/UMTS,IEEE802.16eWiMax,and3GPPLTE（longtermevolution）.Theinherently丨argedecodingIatencyandcompIexiterativedecodingalgorithmhave