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

A high performance frequency offset estimator for OFDM 被引量：1

A high performance frequency offset estimator for OFDM
下载PDF
导出
摘要 This paper proposes a simple method to enlarge the estimation range of conventional carrier frequency offset (CFO) estimation methods based on correlations among the identical parts of the preamble. A novel preamble is designed, which is composed of one regular OFDM training block with even numbers of identical parts and one irregular OFDM training block with odd numbers of identical parts. The initial estimates obtained over the two training blocks are next exploited to jointly estimate the CFO. By elaborately selecting the numbers of identical parts for the two training blocks, the proposed CFO estimator can estimate frequency offset over tens of the subcarrier spacing. Simulation results showed that the proposed CFO estimator satisfies the estimate range requirement for the practical OFDM systems, while achieving a very good estimate performance. This paper proposes a simple method to enlarge the estimation range of conventional carrier frequency offset （CFO） estimation methods based on correlations among the identical parts of the preamble. A novel preamble is designed, which is composed of one regular OFDM training block with even numbers of identical parts and one irregular OFDM training block with odd numbers of identical parts. The initial estimates obtained over the two training blocks are next exploited to jointly estimate the CFO. By elaborately selecting the numbers of identical parts for the two training blocks, the proposed CFO estimator can estimate frequency offset over tens of the subcarrier spacing. Simulation results showed that the proposed CFO estimator satisfies the estimate range requirement for the practical OFDM systems, while achieving a very good estimate performance.
作者 WU Yun LUO Han-wen DING Ming YAN Chong-guang
机构地区 Department of Electronic Engineering Shanghai Sharp Advaneed R＆D Centre
出处 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第12期2104-2109,共6页 浙江大学学报（英文版）A辑（应用物理与工程）
基金 Project supported by the Hi-Tech Research and Development Pro-gram (863) of China (No. 2003AA12331007) and the National NaturalScience Foundation of China (No. 60572157)
关键词 OFDM 频率偏离估值 前同步码 估计范围 OFDM, Frequency offset estimation, Preamble, Chinese residues theorem
分类号 TN929.5 [电子电信—通信与信息系统]
  • 相关文献

参考文献10

  • 1Zhong-wei Zhao.Performance of a novel carrier frequency offset estimation algorithm for OFDM-based WLANs[J].Journal of Zhejiang University SCIENCE A.2006(3)
  • 2Wu, M,Zhu, W.P.A preamble-aided symbol and frequency synchronization scheme for OFDM systems[].IEEE ISCAS’.2005
  • 3Kuo, C,Chang, J.F.Generalized frequency offset estimation in OFDM systems using periodic training symbol[].IEEE ICC’.2005
  • 4Rugini, L,Banelli, P.BER of OFDM systems impaired by carrier frequency offset in multipath fading channels[].IEEE Trans on Wireless Communications.2005
  • 5Schmidl, T.M,Cox, D.C.Robust frequency and timing synchronization for OFDM[].IEEE Trans on Communi-cations.1997
  • 6Morelli, M,Mengali, U.An improved frequency offset estimator for OFDM applications[].IEEE Commun Lett.1999
  • 7Tureli, U.P,Honan, J.,Liu, H.Low-complexity nonlinear least squares carrier offset estimator for OFDM identifiability, diversity and performance[].IEEE Trans on Signal Processing.2004
  • 8Seo, B.S,Kim, S.C,Park, J.Fast coarse frequency offset estimation for OFDM systems by using differen-tially modulated subcarriers[].IEEE Trans Consum Elec-tron.2002
  • 9Kim, Y,Jeong, B.J,Chung, J,Hwang, C.S,Ryu, J.S,Kim, K.H,Kim, Y.K.Beyond 3G: vision, requirements, and enabling technologies[].IEEE Commun Magazine.2003
  • 10.Feasibility Study for OFDM for UTRAN Enhancement (Release 6)[].GPP TSG-RAN-TR.2004

同被引文献11

  • 1贾岳,郑宝辉.DAB接收机中载波频偏估计[J].无线电通信技术,2006,32(1):22-24. 被引量：1
  • 2Pollet T, Van Bladel M, Moeneclaey M. BER sensitivity of OFDM systems to carrier frequency offset and wiener phase noise [J]. IEEE Trans Commun, 1995, 43: 191-193.
  • 3Pollet T, Moeneclaey M. Synchronizability of OFDM signals [ C ]// Proceedings of the IEEE Global Telecommunications Conference (GLOBECOM95). Singapore : [ s. n. ]. 1995 : 2054-2058.
  • 4Tureli U, Honan P J, LIU H. Low-complexity nonlinear least squares carrier offset estimator for OFDM : identifiability, diversity and performance[ J ]. IEEE Trans on Signal Processing, 2004, 52 (9) : 2441-2452.
  • 5Tsai P Y, Kang H Y, Chiueh T D. Joint weighted least-squares estimation of carrier-frequency offset and timing offset for OFDM systems over multipath fading channels [ J ]. IEEE Trans on Veh Technol, 2005, 54 (1) :211-223.
  • 6LU H, DONG Z W. Carrier frequency offset estimation of DAB receiver based on phasereference symbol [ J ]. IEEE Trans on Consumer Electronics, 2000, 46( 1 ) :127-130.
  • 7Rugini L, Banelli P. BER of OFDM systems impaired by carrier frequency offset in muhipath fading channels [ J ]. IEEE Trans on Wireless Communications, 2005, 4 (5) : 2279-2288.
  • 8ETSI. EN 300 401 vl. 4.1. Radio broadcasting systems, digital audio broadcasting to mobile, portable and fixed receivers [ S ]. Sophia Antipolis, France: European Telecommunications Standards Institute, 2006.
  • 9国家广播电影电视总局.GY/T214-200630 MHz-3000MHz地面数字音频广播系统技术规范[s]//国家广播电影电视总局广播电视规划院.北京:国家广播电影电视总局,2006.
  • 10Van de Beek 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: 1800-1805.

引证文献1

Journal of Zhejiang University-Science A(Applied Physics & Engineering)
2006年 第12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