Analysis of DFT-based Channel Estimation in OFDM System with Virtual Subcarriers 


Vol. 33,  No. 10, pp. 941-948, Oct.  2008


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  Abstract

In this paper, the effect of unobtainable channel frequency response (CFR) inside virtual subcarreiers on DFT-based channel estimation is derived and introduced numerically because the CFRs cause the leakage to the estimated channel and degrade the estimation performance. In addition, the performance of DFT-based channel estimation is analyzed with respect to the number of virtual subcarriers, pilot spacing and the number of unobtainable CFRs at equi-distance subcarriers inside virtual subcarriers.

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  Cite this article

[IEEE Style]

K. Kwak and D. Hong, "Analysis of DFT-based Channel Estimation in OFDM System with Virtual Subcarriers," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 10, pp. 941-948, 2008. DOI: .

[ACM Style]

Kyungchul Kwak and Daesik Hong. 2008. Analysis of DFT-based Channel Estimation in OFDM System with Virtual Subcarriers. The Journal of Korean Institute of Communications and Information Sciences, 33, 10, (2008), 941-948. DOI: .

[KICS Style]

Kyungchul Kwak and Daesik Hong, "Analysis of DFT-based Channel Estimation in OFDM System with Virtual Subcarriers," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 10, pp. 941-948, 10. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880