An effective channel estimation method considering channel response length in OFDM systems 


Vol. 30,  No. 9, pp. 755-761, Sep.  2005


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  Abstract

In this paper, we proposed a channel estimation method by impulse signal train in OFDM. In order to estimate the channel response, 4 impulse signals are generated and transmitted during one OFDM (Orthogonal Frequency Division Multiplexing) symbol. The intervals between the impulse signals are all equal in time domain. At the receiver, the impulse response signals are summed and averaged. And then, the averaged impulse response signal is zero padded and fast Fourier transformed to obtain the channel estimation. The BER performance of the proposed method is compared with those of conventional estimation method using the long training sequence in fast fading environments. The simulation results show that the proposed method improves by 3 dB in terms of Eb/No, compared with the conventional method.

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  Cite this article

[IEEE Style]

H. Jeon, W. Choi, H. Lee, "An effective channel estimation method considering channel response length in OFDM systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 9, pp. 755-761, 2005. DOI: .

[ACM Style]

Hyoung-Goo Jeon, Won-Chul Choi, and Hyun Lee. 2005. An effective channel estimation method considering channel response length in OFDM systems. The Journal of Korean Institute of Communications and Information Sciences, 30, 9, (2005), 755-761. DOI: .

[KICS Style]

Hyoung-Goo Jeon, Won-Chul Choi, Hyun Lee, "An effective channel estimation method considering channel response length in OFDM systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 9, pp. 755-761, 9. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880