基于ieee802.16e標準的ldpc碼的編解碼器設計與實現(xiàn)

1、上海交通大學碩士學位論文基于IEEE802.16e標準的LDPC碼的編解碼器設計與實現(xiàn)姓名：陳志凱申請學位級別：碩士專業(yè)：電路與系統(tǒng)指導教師：郭煒20070101上海交通大學碩士學位論文–1–DESIGNIMPLEMENTOFENCODERDECODEROFLDPCCODESBASEDONIEEE802.16ESTARDABSTRACTLowDensityParityCheck(LDPC)codehasbetterdecodeperfm

2、ancehigherdecodethroughputcomparingtoTurbocode.ItsexcellentperfmancemakeslowdensityparitycheckcodebecomeanoptionalchannelcodeofIEEE802.16estard.LowdensityparitycheckcodesinIEEE802.16estardisanarchitectureawarelowdensityp

3、aritycheckcodeiscreatedbycircularrightshiftbasedonsomebasematrixes.Thesefeaturesmakeslowdensityparitycheckcodes’encoderdecoderbasedonIEEE802.16estardmesimplehavehigherparalleldegreedecodethroughput.TheauthresearchsIEEE80

4、2.16estarddeeplyfindlowdensityparitycheckcode’sfastspeedencodealgithmbasedonIEEE802.16estardthatcansupptmulticodelengthLDPCcodesencodebythewayofcomparinganalyzingthreeencodealgithmsproposedinIEEE802.16estard.Theauthintro

5、ducesanewlowdensityparitycheckcode’sencoder’sarchitecture.Thisencodercansupptmultiplecodelengthlowdensityparitycheckcodes’encodingbydesigningaspecifiedbarrelshifter.Theauthcompletesthetaskofresearchlowdensityparitycheckc

6、odes’decodealgithmdecoderarchitecturedesignbasedonIEEE802.16estard.TheauthfindthebestdecodealgithmbycomparingmanydecodealgithmssoftwaresimulationusingMATLABfindoptimizedparametersusingdensityevolution.Theauthintroducesan