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基于循环平稳特性的MIMO-OFDM符号定时和载波频率联合盲同步算法 被引量：2

Joint Blind Estimation of Symbol Timing and Carrier Frequency Offset for MIMO-OFDM System Based on Cyclostationarity
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摘要 提出了一种基于接收信号循环平稳特性(CS)的多输入多输出正交频分复用(MIMO-OFDM)系统符号定时和载波频率联合盲同步算法。该算法通过初始信号检测与符号定时粗同步、符号定时精同步、载波频率粗同步、载波频率精同步四个步骤完成MIMO-OFDM系统符号定时和载波同步。理论分析表明算法适用于无导频符号或训练序列、任意数目收发天线、任意分布加性平稳噪声条件下的同步。仿真结果验证了算法精度可满足MIMO-OFDM系统的符号定时和载波同步要求,并在低信噪比下性能保持稳定。 A novel joint blind symbol timing and carrier synchronization algorithm was proposed based on received signal cyclostationarity（CS）for multi-input multi-output orthogonal frequency division multiplexing（MIMO-OFDM）system.The proposed algorithm achieved accurate synchronization by signal detection and coarse symbol timing synchronization,fine symbol timing synchronization,coarse carrier synchronization and fine carrier synchronization.Theory analysis shows that the algorithm doesn’t require pilot symbols or training sequences,adapts to the synchronization under any number of receive and transmit antennas and any distributed stationary noise.Simulation results verify the performance of the proposed algorithm can satisfy the requirement of symbol timing and carrier synchronization in MIMO-OFDM system,and keep stableness under low SNR.
作者 牛英滔 沈越泓
机构地区 解放军理工大学通信工程学院
出处 《系统仿真学报》 CAS CSCD 北大核心 2008年第2期443-448,共6页 Journal of System Simulation
关键词 多输入多输出正交频分复用 循环平稳 符号定时估计 频偏估计 MIMO-OFDM cyclostationarity symbol timing offset estimation carrier frequency offset estimation
分类号 TN923.53 [电子电信—通信与信息系统]
  • 相关文献

参考文献10

  • 1Gordon L Stuber, John R Barry, Steve W Mclaughlin. Broadband MIMO-OFDM wireless communications [J]. Proceings of IEEE (S0018-9219), 2004, 92(2): 271-294.
  • 2周斌,熊勇,张小东.基于Simulink的分布式MIMOOFDM无线通信仿真[J].系统仿真学报,2006,18(4):927-931. 被引量：10
  • 3Mark Russell, Gordon L Stuber. Interchannel Interference Analysis of OFDM in a Mobile Environment [C]// IEEE 45th Vehicular Technology Conference, Chicago, USA: IEEE, 1995: 820-824.
  • 4Jan-Jaap van de Beek, Magnus Sandell, Per Ola Borjesson. ML Estimation of Time and Frequency Offset in OFDM Systems [J]. IEEE Transaction on Signal Processings (S1053-587X), 1997, 45(7): 1800-1805.
  • 5Tsuguhide Aoki, Magnus Sandell. Pilot Design for Frequency Offset Tracking in MIMO-OFDM Systems[C]// The 17th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Helsinki, Finland: IEEE, 2006: 1-5.
  • 6Yinghui Li, Hlaing Minn. Consistent Pilot Designs For Frequency Offset Estimation in MIMO-OFDM Systems [C]//IEEE International Conference on Acoustics, Speech and Signal Processing, Honolulu, USA: IEEE, 2007: 249-252.
  • 7Helmut Bolcskei. Blind Estimation Of Symbol Timing And Carrier Frequency Offset in Wireless OFDM Systems [J]. IEEE Transaction on Communications (S0090-6778), 2001, 49(6): 988-999.
  • 8Yingwei Yao, Georgios B Giannakis. Blind Carrier Frequency Offset Estimation in SISO, MIMO, and Multiuser OFDM Systems [J]. IEEE Transaction on Communications (S0090-6778), 2005, 53( 1 ): 173-183.
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二级参考文献4

  • 1Stuber G L,Barry J R,McLaughlin S W,Li Y,Ingram M A,Pratt T G.Broadband MIMO OFDM Wireless Communications[J].IEEE Proc.(S 0018-9219),2004,271-294.
  • 2Hemanth Sampath,Shilpa Talwar,Jose Tellado,Vinko Erceg,Arogyaswami Paulraj.A fourth-generation MIMO-OFDM broadband wireless system:Design,performance,and field trial results[J].IEEE Cormm (S0163-6804).2002,40(9):143-149.
  • 3IEEE 802.16.3c-01/29r4 {accepted by TG3},Channel Models for Fixed Wireless Applications[S].
  • 4IEEE C802.20-03/42,Channel Modeling for MBWA[S].IEEE802.20 Session#2.

共引文献9

同被引文献9

  • 1YE(GEOFFREY) L. Simplified channel estimation for OFDM systems with multiple transmit antennas[ J]. IEEE Trans on wireless communications, 2002,1 ( 1 ) :67 -74.
  • 2YINGHUI L, HLAING M. Consistent pilot designs for frequency offset estimation in MIMO -OFDM systems [ C ]//IEEE International Conference on Acoustics, Speech and signal processing, Honolulu, USA : IEEE, 2007, 3:249 - 252.
  • 3SUH C, HWANG C S, CHOI H. Comparative study of time - domain and frequency - domain channel estimation in MIMO - OFDM systems [ C ]//14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications, 2003,2:1095 -1099.
  • 4YUIMING L, LESHEM A. An efficient implementation for mmse based mimo time domain equalizer[ J]. IEEE International Conference on Acoustics, Speech and Signal Processing, 2005,893 -896.
  • 5TSUGUHIDE A, MAGNUS S. Pilot Design for Frequency Offset Tracking in MIMO-OFDM Systems [C]// The 17th Annual 1EEE International Symposium on Personal, Indoor and Mobile Radio Communications. Helsinki, Finland : IEEE, 2006 : 1 - 5.
  • 6LI Ying-hui, MINN Hlaing. Consistent Pilot Designs For Frequency Offset Estimation in MIMO-OFDM Systems [ C ]// IEEE International Conference on Acoustics, Speech and Signal Processing. Honolulu, USA : IEEE, 2007,3 : 249 - 252.
  • 7BEEK J J, SANDELL M, BORJESSON P O. ML Estimation of Time and Frequency Offset in OFDM Systems [ J ]. IEEE Transactions on Signal Processing, 1997,45 (7) : 1800 - 1805.
  • 8YAO Y, GIANNAKIS G B. Blind carrier frequency offset estimation in SISO, MIMO, and multiuser OFDM systems [ J]. IEEE Transactions on Communications,2005,53( 1 ) : 173 - 183.
  • 9郑维珺,何晨.MIMO-OFDM系统中接收窗函数的性能比较[J].计算机工程,2007,33(24):107-108. 被引量：2

引证文献2

二级引证文献4

系统仿真学报
2008年 第2期

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