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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:JIA Min,GU Xue-mai,WU Qun.Improved channel estimation based on adaptive SVM for NC-OFDM systems[J].Journal of Harbin Institute Of Technology(New Series),2012,19(5):67-72.DOI:10.11916/j.issn.1005-9113.2012.05.011.
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Improved channel estimation based on adaptive SVM for NC-OFDM systems
Author NameAffiliation
JIA Min Communication Research Center, Harbin Institute of Technology, Harbin 150001, China
School of Astronautics, Harbin Institute of Technology, Harbin 150001, China 
GU Xue-mai Communication Research Center, Harbin Institute of Technology, Harbin 150001, China 
WU Qun School of Astronautics, Harbin Institute of Technology, Harbin 150001, China 
Abstract:
Non-contiguous OFDM (NC-OFDM) system is popular as its characteristics of avoiding interference by spectrum sensing. The traditional channel estimation methods can not be applied to the NC-OFDM systems directly as its special scheme. The improved time-domain channel estimation method based on adaptive support vector machine (SVM) and signal to noise ratio (SNR) estimation is proposed for NC-OFDM systems in this paper. It adopts the spectrum sensing based on adaptive SVM at the receiver. The simulation results show that the mean square error (MSE) and bit error rate (BER) performance outperform than the conventional schemes under the same condition.
Key words:  CR  SVM  channel estimation
DOI：10.11916/j.issn.1005-9113.2012.05.011
Clc Number:TN929.5
Fund:

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