期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

基于信道冲击响应的OFDM精细同步方法 被引量：3

Fine Synchronization Method for OFDM Based on Channel Impulse Response
下载PDF
导出
摘要 提出一种基于信道冲击响应的正交频分复用系统精细同步方法,在非理想同步情况下,利用可抑制能量泄漏的修正迭代最小二乘信道估计信道冲击响应,并对估计结果进行定时,同时介绍基于信道冲击响应的窗函数。仿真实验结果表明,该方法能够克服传统相关方法定时滞后的缺点,且获得较高的估计精度。 A fine synchronization method for Orthogonal Frequency Division Multiplexing（OFDM） based on Channel Impulse Response （CIR） is proposed. CIR is estimated by Least Square（LS） channel with suppressing the effect of energy leakage under non-ideal synchronization, and the estimation result is timed. The window function based on CIR is also introduced. Simulation experimental results show this method can overcome the demerits of time lags for traditional relevant methods, and achieve higher estimation accuracy.
作者 刘广宇 李明齐 林华乐 杨曾 卜智勇
机构地区 上海微系统与信息技术研究所 上海瀚讯无线技术有限公司 东南大学移动通信国家重点实验室
出处 《计算机工程》 CAS CSCD 北大核心 2009年第14期25-27,34,共4页 Computer Engineering
基金 国家"863"计划基金资助项目"一种基于滤波器组实现的单载波多址传输方案研究"(2006AA01Z280) 上海市科学技术委员会基金资助项目(06DZ05833)
关键词 正交频分复用 定时同步 信道冲击响应 Orthogonal Frequency Division Multiplexing（OFDM） time synchronization Channel Impulse Response（CIR）
分类号 TN929.5 [电子电信—通信与信息系统]
  • 相关文献

参考文献3

  • 1Qiao Yantao,Yu Songu,Su Pengcheng,et al.Research on an Iterative Algorithm of LS Channel Estimation in MIMO OFDM Systems[J].IEEE Trans.on Broadcasting,2005,51(1):149-153.
  • 2Magnus S.Estimation of Time and Frequency Offset in OFDM Systems[J].IEEE Trans.on Signal Processing,1997,45(7):1800-1805.
  • 3周恩,陈茅茅,王文博.一种适用于多径衰落信道的OFDM系统同步算法[J].电子与信息学报,2005,27(10):1625-1629. 被引量：1

二级参考文献10

  • 1Schmidl T M, Cox D C. Robust frequency and timing synchronization for OFDM. IEEE Trans. on Communications,1997, 45(12): 1613- 1621.
  • 2Kim Y H, Hahm Y K, Jung H J, et al.. An efficient frequency offset estimator for timing and frequency synchronization in OFDM systems. IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, Aug. 1999:580 - 583.
  • 3Ramasubramanian K, Baum K. An OFDM timing recovery scheme with inherent delay-spread estimation. IEEE GLOBECO '01. Nov. 2001, Vol.5:3111 - 3115.
  • 4Van de Beek J J, Sandell M, Borjesson P O. ML estimation of time and frequency offset in OFDM systems. IEEE Trans. on Signal Processing, 1997, 45(7): 1800- 1805.
  • 5Van de Beek J J, Sandell M, Isaksson M, et al.. Low-complex frame synchronization in OFDM systems. IEEE International Conference on Universal Personal Communications, Nov. 1995:982 - 986.
  • 6Landstrom D, Wilson S K, vande Beek J J, et al.. Symbol time offset estimation in coherent OFDM systems. IEEE Trans. on Communications, 2002, 50(4): 545 - 549.
  • 7Van de Beek J J, Borjesson P O, Boucheret M L, et al.. Three non-pilot based time and frequency estimators for OFDM. Signal Processing, 2000, 80(7): 1321 - 1334.
  • 8Hsieh M H, Wei C H. A low-complexity frame synchronization and frequency offset compensation scheme for OFDM systems over fading channels. IEEE Trans. on Vehicular Technology,1999, 48(9): 1596 - 1609.
  • 9Atarashi Hiroyuki, Abeta Sadayuki, Sawahashi Mamoru. Pilot channel assisted MMSE combining in forward link for broadband OFCDM packet wireless access. IEICE Trans. on Fundamentals of Electronics, Communications and Computer Sciences, July 2002: 1635- 1647.
  • 10邝育军,侯晓林,乐光新.无线弥散信道下OFDM系统中时间同步方案的比较分析[J].北京邮电大学学报,2003,26(3):75-80. 被引量：5

同被引文献12

  • 1Jiang Fan,Becker M R,Perez L C.Time-varying Turbo Codes[J].IEEE Communications Letters.2004,8(8):529-531.
  • 2Jin Young-Kim.Performance of OFDM/CDMA System with Turbo Coding in a Multipath Fading Channel[J].IEEE Transactions on Consumer Electronics.1999,45(2):372-379.
  • 3Ahmed S,Ratnarajah T,Sellathurai M.Iterative Receivers for MIMO-OFDM and Their Convergence Behavior[J].IEEE Transactions on Vehicular Technology.2009,58(1):461-468.
  • 4Hsieh Meng-Han,Wei Che-Ho.Channel Estimation for OFDM Systems Based on Comb-type Pilot Arrangement in Frequency Selective Fading Channels[J].IEEE Transactions on Consumer Electronics.1998,44(1):217-225.
  • 5Fang Kun,Rugini L,Leus G.Low-complexity Block Turbo Equalization for OFDM Systems in Time-varying Channels[J].IEEE Transactions on Signal Processing.2008,56(11):5555-5566.
  • 6Michael T,Ralf K,Andrew C S.Turbo Equalization: Principles and New Results[J].IEEE Transactions on Communications.2002,50(5):754-767.
  • 7Hee H S, Lcc Hong. An Overview of Peak-to-Average Power Ratio Reduction Techniques for Multi-carrier Transmission[J]. IEEE Wireless Communications, 2005, 12(2): 56-65.
  • 8Muller S H, Huber J B. OFDM with Reduced Peak-to-Average Power Ratio by Optinmm Combinationof Partial Transmit Sequences[J]. Electronics Letters, 1997, 33(5): 368-369.
  • 9Tellambura C. hnproved Phase Factor Computation for the PAR Reduction of an OFDM Signal Using PTS[J]. IEEE Communication Letters, 2001, 5(4): 135-137.
  • 10何艳艳,施保昌,杨益.基于移位多相正交序列的周期完全互补码[J].信号处理,2007,23(6):941-945. 被引量：3

引证文献3

二级引证文献4

计算机工程
2009年 第14期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部