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OFDM系統(tǒng)上行鏈路的一種載波偏差估計算法

邊東明,  冉崇森,  儀新穎

邊東明, 冉崇森, 儀新穎. OFDM系統(tǒng)上行鏈路的一種載波偏差估計算法[J]. 電子與信息學報, 2004, 26(6): 864-870.
引用本文: 邊東明, 冉崇森, 儀新穎. OFDM系統(tǒng)上行鏈路的一種載波偏差估計算法[J]. 電子與信息學報, 2004, 26(6): 864-870.
A Carrier Frequency Offset Estimation Algorithm for Uplink of OFDM Systems[J]. Journal of Electronics & Information Technology, 2004, 26(6): 864-870.
Citation: A Carrier Frequency Offset Estimation Algorithm for Uplink of OFDM Systems[J]. Journal of Electronics & Information Technology, 2004, 26(6): 864-870.

OFDM系統(tǒng)上行鏈路的一種載波偏差估計算法

A Carrier Frequency Offset Estimation Algorithm for Uplink of OFDM Systems

  • 摘要: 通過分析OFDM信號的特點,該文給出了OFDM系統(tǒng)上行鏈路的一種基于高倍鐘采樣的載波偏差估計算法.與采用循環(huán)前綴的載波偏差估計算法相比,該算法實現(xiàn)復雜度低,算法精度高,受用戶子載波數(shù)目影響較小,適宜于多用戶OFDM系統(tǒng).計箅機仿真表明該算法具有優(yōu)良的性能,優(yōu)于采用循環(huán)前綴的載波偏差估計算法.
    Abstract: By analyzing the OFDM signal, a carrier frequency offset estimation algorithm for uplink of OFDM systems is proposed. The algorithm with high accuracy can be imple-mented easily, and the performance of the algorithm is almost not affected by the sub-carrier number per user, which makes the algorithm suit for the multi-user OFDM system. The simulation shows that the algorithm has a better performance than the algorithm based on cyclic prefix.
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  • Van de Beek J J,Sandell M,Borjesson P O.ML estimation of timing and frequency offset in OFDM systems[J].IEEE Trans.on SP.1997,45(7):1800-1805[2]Wei L,Schlegel C.Synchronization requirements for multi-user OFDM on satellite mobile and two-path Rayleigh-fading channels[J].IEEE Trans.on Comm.1995,43(2/3/4):887-895[3]Van de Beek J J,Borjesson P O.Marie-Laure Boucheret,A time and frequency synchronization scheme for multiuser OFDM.IEEE Trans.on SAC,1999,17(11):1900-1914.[4]Dusan Matic,Ton A.J.R.M.Coenen,Frits C.Schoute,Ramjee Prasad.OFDM timing synchronization-Possibilities and limits to the usage of the cyclic prefix for maximum likelihood estimation.VTC99 Fall,Amsterdam,Sep.1999,Vol.2:668-672.[5]Helmut bolcskei.Blind high-resolution for uplink synchronization of OFDM-based multiple access schemes.IEEE ICASSP99,Phoenix,USA,Mar.1999,Vol.5:2749-2752.[6]Jihoon Choi,Changoo Lee,Hae Won Jung,Yong Hoon Lee.Carrier frequency offset compensation for uplink of OFDM-FDMA systems[J].IEEE Comm.Letters.2000,4(12):414-416[7]Samir Kapoor,Daniel J.Marchok,Yih-Fang Huang[J].Pilot assisted synchronization for wireless OFDM systems over fast time varying fading channels.Proc.VTC98,Ottawa,May.1998,Vol.4:2077-2088[8]Ji Sung Oh,Young Mo Chung,Sang Uk Lee.A carrier synchronization technique for OFDM on the frequency-selective fading environment[J].Proc.IEEE Vehicular Technology Conference9.1996,vol.46:1574-1578[9]Navid Lashkarian,Sayfe Kiaei.Class of cyclic-based estimators for frequency-offset estimation of OFDM systems[J].IEEE Trans.on Comm.2000,48(12):2139-2149
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  • 文章訪問數(shù):  2088
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出版歷程
  • 收稿日期:  2002-12-20
  • 修回日期:  2003-04-21
  • 刊出日期:  2004-06-19

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