| A New Symbol Synchronization Scheme for Cyclic Prefix Based Systems |
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| 引用本文： | KUANG Yu jun 1,TENG Yong 2,YIN Chang chuan 2,HAO Jian jun 2,YUE Guang xin 2 (1.Chongqing University of Posts and Telecommunications,Chongqing 400065,P.R.China, 2.Telecommunication Engineering School,Beijing University of Posts and Telecommunications,Beijing 100876,P.R. China). A New Symbol Synchronization Scheme for Cyclic Prefix Based Systems[J]. 中国邮电高校学报(英文版), 2003, 10(3) |
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| 作者姓名： | KUANG Yu jun 1 TENG Yong 2 YIN Chang chuan 2 HAO Jian jun 2 YUE Guang xin 2 (1.Chongqing University of Posts and Telecommunications Chongqing 400065 P.R.China 2.Telecommunication Engineering School Beijing University of Posts and Telecommunications Beijing 100876 P.R. China) |
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| 作者单位： | 1.Chongqing University of Posts and Telecommunications，Chongqing 400065，P.R.China; 2.Telecommunication Engineering School，Beijing University of Posts and Telecommunications，Beijing 100876，P.R. China |
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| 基金项目： | ThisworkwassupportedbytheNationalNaturalScienceFund (No. 60 1 72 0 52,90 1 0 4 0 1 8) ,KeyProjectsof863Program (No.2 0 0 1AA1 2 30 1 6) |
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| 摘 要： | 1 IntroductionFastFourierTransform (FFT)hasledtothesuccessofOrthogonalFrequencyDivisionMultiplex ing (OFDM)inxDSL ,IEEE80 2 .1 1a[1 ] andDAB/DVB[2 ] .AndthekeyofOFDMalsoliesinthein troducedcyclicprefixwhichmakesfrequencydo mainequalizationeasytoimplementandavoidsInterBlockInterference (IBI) .Theideahasalsobeenadaptedtosinglecarriercommunication ,almost“asitis” ,yieldingthesamecomputationaladvantagesandavoidingthehighcrestfactorofOFDM .ForbothOFDMandCyclicPrefix SingleCar…
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A New Symbol Synchronization Scheme for Cyclic Prefix Based Systems |
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| KUANG Yu-jun,TENG Yong,YIN Chang-chuan,HAO Jian-jun,YUE Guang-xin. A New Symbol Synchronization Scheme for Cyclic Prefix Based Systems[J]. The Journal of China Universities of Posts and Telecommunications, 2003, 10(3) |
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| Authors: | KUANG Yu-jun TENG Yong YIN Chang-chuan HAO Jian-jun YUE Guang-xin |
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| Abstract: | This contribution proposes a new symbol synchronization scheme for cyclic prefix based modulation systems, which is disclosed in Ref.[16]. The proposed algorithm involves two steps. By using short time Fourier transform, ISI free intervals are estimated from time frequency spectrum of the received signal, and then an optimum symbol start time is obtained. Computer simulation results show that the algorithm is very robust, and outperforms those based upon time domain correlations. |
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| Keywords: | OFDM symbol timing Short Time Fourier Transform(STFT) time frequency spectrum synchronization |
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