DS-CDMA-UWB系統(tǒng)和MB-OFDM-UWB系統(tǒng)的綜合比較研究.pdf

1、哈爾濱工程大學碩士學位論文DSCDMAUWB系統(tǒng)和MBOFDMUWB系統(tǒng)的綜合比較研究姓名：薛睿申請學位級別：碩士專業(yè)：信號與信息處理指導教師：趙旦峰20060301瞼璽鎏三堡盔蘭鎏圭蘭垡笙蘭AbstractUltrawidebandwirelesstechnologyhasmanyadvantages，suchaslowcost，smallpowerconsumption，highratedatatransmissionandstro

2、nganti—interferenceabilityItisconsideredtobethestandardofthepaysicallayerofwirelesspersonalaeranetworkofthefuturegenerationTheIEEE802153aworkgroupwhichestablishsthephysicallayerstandardoffuturegenerationwirelesspersonala

3、eranetworkhasreceivedmanyproposalsabouttheultrawidebandtechnologyTheseplansformtwoimportantplansthroughnegotiatingeachotherThetwoimportantschemesaremultibandorthogonal丘equencydivisionmultiplexingplananddirectsequencecode

4、divisionmultipleacessplanBecausetwoplansarenotmutuallycompatibleintechnologytheIEEE802153aworkgroupisfallingindeadlockwhenitdiscussestheultrawidebandtechnologyBecausebothsideshavenotachievedtheIEEEauthorization75％votingr

5、ate，therefore，neitherbecomestheultrawideband’SstandardAccordingtotwoplanspaysicallevelsuggestion，ThepaperestablishstwosystemmodlesusingtheMatlabsoftware，analysissimulationmsultComprehensivelycomparestwosystems’performanc

6、ewhichincludes丘equencywidthperformance，coverscope，multipathenergycollection，realizationcomplex，powerloss，anti—interferenceabilityandSOonTheresultindicatesthattwoplansbothhavetheoutstandingperformanceincertainaspect，theov

7、erallperformanceisequal，twoplans’competitionpostponedtheultrawidebandstandardappearing，onlythemarketpossiblydecidestheultrawideband’SstandardatlastKeywords：ultrawideband；orthogonalfrequencydivisionmultiplexing；timefreque