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Noise Reduction by Using Eigenfilter in Cyclic Prefix System Based on SNR
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 Title & Authors
Noise Reduction by Using Eigenfilter in Cyclic Prefix System Based on SNR
Kim, Jin-Goog;
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 Abstract
In this paper, we propose the noise reduction method by using the eigenfilter in cyclic prefix system based on SNR. To obtain the signal eigenvectors for the eigenfiltering, we propose a method of obtaining the autocorrelation matrix by exploiting the circulant property of the received block which results from the cyclic extension of the OFDM symbol. Since the structures of the transmitter and the receiver are not changed, the proposed method is easy to apply to the conventional OFDM system. To verify the proposed method, we evaluate the persistency of excitation (POE) criterion for the input and demonstrate the effectiveness of the proposed method in the simulation results.
 Keywords
OFDM;Eigenfilter;Noise Reduction;Cyclic prefix system;
 Language
Korean
 Cited by
1.
음성 검출 기반의 저연산 이득 제어 알고리즘,김상균;조우형;정민아;권장우;이상민;

한국통신학회논문지, 2015. vol.40. 5, pp.924-930 crossref(new window)
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