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GUO Yi;LIU Gang;GE Jian-hua
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Abstract: To eliminate the effect of inter-carrier interference(ICI) on MIMO-OFDM systems, an iterative channel estimation algorithm is proposed. Based on the frequency-domain orthogonal block pilot pattern, the new algorithm obtains a temporal channel response by the discrete Fourier transform(DFT) based channel estimation algorithm, and improves the estimation performance by the iterative channel estimation with noise reduction. With the channel pre-correcting and appropriate time-domain filtering, the new algorithm can effectively eliminate the effect of ICI and channel noises. Furthermore, owing to avoiding the inversion of a large matrix to decouple the inter-antenna interference, the new algorithm can be easily realized compared with the traditional algorithms.
Key words: MIMO-OFDM, noise reduction, channel Estimation, pilot
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GUO Yi;LIU Gang;GE Jian-hua. Iterative channel estimation with noise reduction for MIMO-OFDM systems [J].J4, 2008, 35(2): 196-200.
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URL: https://journal.xidian.edu.cn/xdxb/EN/
https://journal.xidian.edu.cn/xdxb/EN/Y2008/V35/I2/196
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