A novel frequency offset estimation scheme using coherence phase bandwidth and threshold for OFDM systems

被引:0
作者
Kim, S [1 ]
Yoon, S
Kim, SY
机构
[1] Sungkyunkwan Univ, Sch Informat & Commun Engn, Suwon, South Korea
[2] Konkuk Univ, Dept Elect Engn, Seoul, South Korea
来源
8TH INTERNATIONAL CONFERENCE ON ADVANCED COMMUNICATION TECHNOLOGY, VOLS 1-3: TOWARD THE ERA OF UBIQUITOUS NETWORKS AND SOCIETIES | 2006年
关键词
OFDM; frequency offset; timing offset; estimation; threshold;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
We first investigate the effect of the timing offset on the frequency offset estimation in orthogonal frequency division multiplexing (OFDM) systems. Then, we propose an efficient frequency offset estimation scheme using the coherence phase bandwidth (CPB) and a threshold in the presence of the timing offset. The numerical results demonstrate that the proposed scheme has lower computational complexity compared with the conventional schemes and performs robust operation in the presence of the timing offset. http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=1625512
引用
收藏
页码:U6 / U10
页数:5
相关论文
共 9 条
  • [1] A coarse frequency offset estimation in an OFDM system using the concept of the coherence phase bandwidth
    Bang, K
    Cho, NS
    Cho, JH
    Jun, HY
    Kim, K
    Park, H
    Hong, DS
    [J]. IEEE TRANSACTIONS ON COMMUNICATIONS, 2001, 49 (08) : 1320 - 1324
  • [2] Fazel K., 2003, MULTICARRIER SPREAD
  • [3] Frequency offset and symbol timing recovery in flat-fading channels: A cyclostationary approach
    Gini, F
    Giannakis, GB
    [J]. IEEE TRANSACTIONS ON COMMUNICATIONS, 1998, 46 (03) : 400 - 411
  • [4] An efficient frequency offset estimator for OFDM systems and its performance characteristics
    Kim, YH
    Song, I
    Yoon, S
    Park, SR
    [J]. IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2001, 50 (05) : 1307 - 1312
  • [5] An improved frequency offset estimator for OFDM applications
    Morelli, M
    Mengali, U
    [J]. IEEE COMMUNICATIONS LETTERS, 1999, 3 (03) : 75 - 77
  • [6] Nee R. V., 2000, OFDM WIRELESS MULTIM
  • [7] NOGAMI H, 1995, P IEEE PIRMC TOR CAN, P1010, DOI DOI 10.1049/EL:20040562
  • [8] Robust frequency and timing synchronization for OFDM
    Schmidl, TM
    Cox, DC
    [J]. IEEE TRANSACTIONS ON COMMUNICATIONS, 1997, 45 (12) : 1613 - 1621
  • [9] ML estimation of time and frequency offset in OFDM systems
    vandeBeek, JJ
    Sandell, M
    Borjesson, PO
    [J]. IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1997, 45 (07) : 1800 - 1805