Advanced Search
Volume 27 Issue 11
Nov.  2005
Turn off MathJax
Article Contents
Zheng Lai-bo, Hu Jian-dong. A Decision-Directed OFDM Carrier Frequency Synchronization Loop[J]. Journal of Electronics & Information Technology, 2005, 27(11): 1710-1713.
Citation: Zheng Lai-bo, Hu Jian-dong. A Decision-Directed OFDM Carrier Frequency Synchronization Loop[J]. Journal of Electronics & Information Technology, 2005, 27(11): 1710-1713.

A Decision-Directed OFDM Carrier Frequency Synchronization Loop

  • Received Date: 2004-05-31
  • Rev Recd Date: 2004-10-15
  • Publish Date: 2005-11-19
  • Further investigation is given to a kind of carrier frequency offset (CFO) blind estimation algorithm based on time domain received signal reconstruction in OFDM systems, and the four aspects that affect the estimation accuracy are analyzed. For minimizing the residual carrier frequency offset, a kind of decision-directed carrier frequency synchronization loop is given by introducing a feedback factor into the frequency compensation. Better carrier frequency tracking performance can be gotten by adjusting the loop gain. The residual frequency offset can be restricted within 1% of the carrier spacing even if lager frequency drift exists, if bit SNR reaches 9dB.
  • loading
  • Hanzo L, Munster M, Choi B J, et al.. OFDM and MC-CDMA for broadband multi-user communications, WLANs and broadcasting. West Sussex, England, IEEE Press, 2003: 117-124.[2]Sari H, Karam G, Jeanclaude I. Transmission techniques for digital terrestrial TV broadcasting. IEEE Comm. Magazine, 1995, 33(2): 100-109.[3]Kalet I. The multitone channel[J].IEEE Trans. Comm.1989, 37(2):119-124[4]Van Nee R. New high-rate wireless LAN standards. IEEE Comm. Magazine, 1999, 37(12): 82-88.[5]Van Nee R, Prasad R. OFDM Wireless Multi-media Communications. Boston, London: Artech House, 2000: 73-93.[6]Van de Beek J J, Sandell M, Borjesson P O. ML estimation of time and frequency offset in OFDM systems[J].IEEE Trans. on Signal Processing.1997, 45(7):1800-1805[7]Daffara F, Adami O. A novel carrier recover technique for orthogonal multicarrier system[J].European Trans., Telecommun.1996, 7(4):323-334[8]Du Y.[J].Zhang X M, Zhu P C. A signal reconstruction CFO blind tracking algorithm for OFDM system in multipath channels. Proc. PIMRC04, Beijing.2003,:-
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (2368) PDF downloads(814) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return