A Channel Estimation Technique for OFDM-CDMA Systems 


Vol. 29,  No. 6, pp. 660-666, Jun.  2004


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  Abstract

Transmitted data may be compensated by using estimated channel values that are obtained with pilot symbols in OFDM-CDMA systems. Generally, a MMSE (Minimum Mean-Squared Error) estimator using correlations between pilot symbols gives good results, but its structure is so complicated. Starting with a modification of PA (Pilot-Aided) algorithm using pilot symbols and PADD (Pilot-Aided Decision-Directed) algorithm using both pilot and data symbols, a new channel estimation algorithm with more simpler structure is proposed. The performance of this algorithm is evaluated with varying mobile speed in a Ralyleigh multipath fading environment through computer simulations. The simulation results show that the proposed channel estimation algorithm outperforms a conventional PA algorithm.

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  Cite this article

[IEEE Style]

D. Song and J. Park, "A Channel Estimation Technique for OFDM-CDMA Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 6, pp. 660-666, 2004. DOI: .

[ACM Style]

Dong-Wook Song and Joong-Hoo Park. 2004. A Channel Estimation Technique for OFDM-CDMA Systems. The Journal of Korean Institute of Communications and Information Sciences, 29, 6, (2004), 660-666. DOI: .

[KICS Style]

Dong-Wook Song and Joong-Hoo Park, "A Channel Estimation Technique for OFDM-CDMA Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 6, pp. 660-666, 6. 2004.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880