An Adaptive Symbol Synchronization for OFDM Systems Based on PN Sequence-weighted Preamble

Shi  Feng; Hu  Deng-Peng; Wang  Chen; Zhang  Er-Yang

doi:10.3724/SP.J.1146.2010.00886

Volume 33 Issue 5

Jun. 2011

Turn off MathJax

Article Contents

Article Navigation > Journal of Electronics & Information Technology > 2011 > 33(5): 1166-1171

Shi Feng, Hu Deng-Peng, Wang Chen, Zhang Er-Yang. An Adaptive Symbol Synchronization for OFDM Systems Based on PN Sequence-weighted Preamble[J]. Journal of Electronics & Information Technology, 2011, 33(5): 1166-1171. doi: 10.3724/SP.J.1146.2010.00886

Citation:

Shi Feng, Hu Deng-Peng, Wang Chen, Zhang Er-Yang. An Adaptive Symbol Synchronization for OFDM Systems Based on PN Sequence-weighted Preamble[J]. Journal of Electronics & Information Technology, 2011, 33(5): 1166-1171. doi: 10.3724/SP.J.1146.2010.00886

Citation:

PDF( 257 KB)

An Adaptive Symbol Synchronization for OFDM Systems Based on PN Sequence-weighted Preamble

doi: 10.3724/SP.J.1146.2010.00886 cstr: 32379.14.SP.J.1146.2010.00886

Received Date: 2010-08-19
Rev Recd Date: 2011-01-31
Publish Date: 2011-05-19

Abstract

Abstract

The conventional timing metric based on Pseudo Noise (PN) sequence-weighted preamble for OFDM systems is analyzed, and an adaptive symbol synchronization method is proposed. With the improved preamble, the proposed method uses the repeated property of the cyclic prefix and the distribution property of timing metric based on PN sequence-weighted preamble to design timing scheme, and carries out adaptive symbol synchronization according to the peak value of timing metric in a selected region. Analysis and simulation results show that compared with the conventional symbol synchronization method based on PN sequence-weighted preamble, the proposed method achieves low false detection probability, and improves the estimation performance for symbol synchronization.
- OFDM,
- Symbol synchronization,
- Pseudo Noise (PN) sequence,
- Adaptive method

FullText(HTML)

References(1)

References

Schmidl T M and Cox D C. Robust frequency and timing synchronization for OFDM[J].IEEE Transactions on Communications.1997, 45(12):1613-1621[2]Minn H, Zeng M, and Bhargava V K. On timing offset estimation for OFDM systems[J].IEEE Communications Letters.2000, 4(7):242-244[3]Guo Yi, Liu Gang, and Ge Jian-hua. A new time and frequency synchronization scheme for OFDM systems [J].IEEE Transactions on Consumer Electronics.2008, 54(2):321-325[6]Awoseyila A B, Kasparis C, and Evans B G. Robust time-domain timing and frequency synchronization for OFDM systems [J].IEEE Transactions on Consumer Electronics.2009, 55(2):391-399[7]严春林. 正交频分复用系统中的同步技术研究[D]. [博士论文], 电子科技大学, 2004: 39-52.[9]Ren Guang-liang, Chang Yi-lin, and Zhang Hui, et al.Synchronization method based on a new constant envelope preamble for OFDM systems[J].IEEE Transactions on Broadcasting.2005, 51(1):139-143[13]杨德保. 工科概率统计[M]. 第3版, 北京: 北京理工大学出版社, 2007: 201-207.[15] GSM 05.05. Digital Cellular Telecommunications System (Phase 2+); Radio Transmission and Reception [S]. Jul. 1996.[1] GSM 05.05. Digital Cellular Telecommunications System (Phase 2+),Radio Transmission and Reception [S]. 1996.

Relative Articles

Supplements(0)

Cited By

Proportional views