Improved Blnd Estimation of OFDM Parameters Based onCyclostationarity Analysis Method
[1]SUN Gangcan,DANG Manman,XU Xuefei.Improved Blnd Estimation of OFDM Parameters Based onCyclostationarity Analysis Method[J].Journal of Zhengzhou University (Engineering Science),2012,33(02):5-9.[doi:10.3969/j.issn.1671-6833.2012.02.002]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
33卷
Number of periods:
2012 02
Page number:
5-9
Column:
Public date:
2012-03-10
- Title:
- Improved Blnd Estimation of OFDM Parameters Based onCyclostationarity Analysis Method
- CLC:
- TN914
- DOI:
- 10.3969/j.issn.1671-6833.2012.02.002
- Abstract:
- This paper proposes a new algorithm for blind estimation of parameters of OFDM signals under mul.tipath channel based on the autocorrelation properties and the cyclostationarity of OFDM signals. The autocor.relation of the OFDM signal is firstly applied to estimate the useful data period, then we introduce average ideawhen estimate symbol period based on the second-order cyclostationarity character of OFDM signals in mul.tipath channel, and get more accurate OFDM symbol period by getting the average value of the cyclic frequencies, so the proposed algorithm has better performance. The simulation results show that the blind parametersestimation accuracy rate of this algorithm can reach more than 90% with SNR equals to -2 dB, as well as al-most 100% when SNR equals to 2 dB.
- References:
- -
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Last Update:
1900-01-01