Joint Synchronization and Channel Estimation for OFDM Systems

被引：0
|
作者：
CAO Xue-hong Department of Information Engineering
机构：
来源：
The Journal of China Universities of Posts and Telecommunications | 2005年 / 02期
关键词：
OFDM; WLAN; synchronization; channel estimation; maximum likelihood;
D O I：
暂无
中图分类号：
TN919.3 [数据传输技术];
学科分类号：
0810 ; 081001 ;
摘要：
OFDM systems are extremely sensitive to synchronization and channel estimation imperfections. Meanwhile the timing, frequency synchronization and channel estimation may affect each other. This paper investigates a new algorithm of joint estimation utilizing one training signal which can be used in preamble-based OFDM system, such as IEEE (802.11a) WLAN system. The scheme includes two stages for performance improvement and simplicity. At the first stage, the coarse timing and frequency offset and channel response are obtained. The fine synchronization and channel estimation based on the coarse stage are obtained at the second stage. The simulation results show that the channel estimation of the proposed joint estimation is quite close to the case with known sync parameters and the BER of the system is quite close to the case with known channel response.
引用
收藏
页码：40 / 45
页数：6
相关论文
共 50 条
  • [1] Joint channel estimation and synchronization for OFDM systems
    Freda, MM
    Weng, JF
    Le-Ngoc, T
    [J]. VTC2004-FALL: 2004 IEEE 60TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-7: WIRELESS TECHNOLOGIES FOR GLOBAL SECURITY, 2004, : 1673 - 1677
  • [2] Optimized Joint Timing Synchronization and Channel Estimation for OFDM Systems
    Kung, Te-Lung
    Parhi, Keshab K.
    [J]. IEEE WIRELESS COMMUNICATIONS LETTERS, 2012, 1 (03) : 149 - 152
  • [3] Turbo joint channel estimation, synchronization, and decoding for coded OFDM systems
    Li, Si
    Le-Ngoc, Tho
    Kwon, Soon Chan
    Seo, Jong-Soo
    [J]. AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, 2010, 64 (07) : 663 - 670
  • [4] An optimized joint time synchronization and channel estimation scheme for OFDM systems
    Wang, Chin-Liang
    Wang, Hung-Chin
    [J]. 2008 IEEE 67TH VEHICULAR TECHNOLOGY CONFERENCE-SPRING, VOLS 1-7, 2008, : 908 - +
  • [5] Joint Channel and Synchronization Estimation Algorithm in FH-OFDM Systems
    Cheng, Yongmao
    Wang, Jie
    Sheng, Wenping
    Lin, Yu
    Yang, Chunying
    Li, Tingjun
    [J]. ADVANCES IN ELECTRONIC COMMERCE, WEB APPLICATION AND COMMUNICATION, VOL 2, 2012, 149 : 317 - 322
  • [6] Joint Synchronization and Channel Estimation of ACO-OFDM Systems With Simplified Transceiver
    Qian, Xuewen
    Deng, Honggui
    He, Hailang
    [J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 2018, 30 (04) : 383 - 386
  • [7] Frame synchronization and joint estimation of IQ imbalance and channel response for OFDM systems
    Cho, W-J
    Chang, T-K
    Chung, Y-H.
    Phoong, S. -M.
    Lin, Y-P
    [J]. 2008 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-12, 2008, : 3029 - +
  • [8] Joint Timing Synchronization and Channel Estimation for OFDM Systems via MMSE Criterion
    Zhang, Yanyan
    Zhang, Jianhua
    Xia, Minghua
    [J]. 68TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, FALL 2008, 2008, : 1105 - 1108
  • [9] Joint channel estimation and OFDM synchronization in multipath fading
    Lim, WC
    Kannan, B
    Tjhung, T
    [J]. 2004 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-7, 2004, : 983 - 987
  • [10] Fast Synchronization and Channel Estimation for OFDM Systems
    Jing Zheng
    Suping Peng
    Guowei Zhu
    Huaixiu Wang
    [J]. Wireless Personal Communications, 2013, 69 : 1207 - 1222
12345