| Joint Space／Time Equalization over Rear Feedback Filter for High-speed Wireless Transmission |
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| 引用本文： | 孟维晓,Qi Chenghang,GU Lei.Joint Space／Time Equalization over Rear Feedback Filter for High-speed Wireless Transmission[J].高技术通讯(英文版),2004,10(4):24-28. |
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| 作者姓名： | 孟维晓 Qi Chenghang GU Lei |
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| 作者单位： | Communication Research |
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| 基金项目： | SupportedbytheScientificResearchFoundationofHarbinInstituteofTechnologyandSupportedbytheNationalNaturalScienceFoundationofChina . |
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| 摘 要： | 0 IntroductionWiththeincreasingdemandformobilecommunica tions,bettertransmissionqualityaswellasmoreabun dantservicesarerequired .However,Inter SymbolInter ference (ISI)causedbytimedelaywhensignaltransmitsinmulti pathchannel ,andCo ChannelInterference(CCI)causedbymulti accessinterference ,arestilldiffi culttosuppress ,andremaintobethemajorproblemsinthebeyondthirdgenerationmobilecommunicationsys tem .Space/Timeequalizationtechnologyisoneoftheef ficientmethodstoeliminateCCIandISIforfutur…
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| 关 键 词： | 高速无线传输技术 反馈滤波器 CCI 公用客户软件结构 ISI |
Joint Space/Time Equalization over Rear Feedback Filter for High-speed Wireless Transmission |
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| Meng Weixiao,Qi Chenghang,Gu Lei.Joint Space/Time Equalization over Rear Feedback Filter for High-speed Wireless Transmission[J].High Technology Letters,2004,10(4):24-28. |
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| Authors: | Meng Weixiao Qi Chenghang Gu Lei |
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| Abstract: | Beyond the third generation mobile communications, high-capacity and high-speed wireless transmission causes serious Co-Channel Interference (CCI) and Inter-Symbol Interference (ISI). This paper first set up a kind of Space/Time transmission model, then proposed a Joint Space/Time Equalizer, which was based on Recursive Least Square (RLS) algorithm and composed of Adaptive Array Antenna (AAA) and Temporal Equalizer (TE). Being different from traditional equalizer using front feedback filter, this paper employed rear feedback filter which reduces the number of adaptive weight values from M×L to M+L. Simulation results show that the proposed scheme efficiently improves the ability of anti-interference in multi-path fading channel, raises the practical feasibility and reduces algorithm complexity. |
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| Keywords: | Joint Space/Time Equalization CCI ISI RLS AAA |
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