Constant Modulus Based Blind Channel Estimation for Orthogonal 

Frequency Division Multiplexing Systems

Chen Zhi-gang; Zhang Tai-yi; Zhou Ya-tong

Volume 28 Issue 12

Aug. 2010

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Article Navigation > Journal of Electronics & Information Technology > 2006 > 28(12): 2367-2370

Chen Zhi-gang, Zhang Tai-yi, Zhou Ya-tong. Constant Modulus Based Blind Channel Estimation for Orthogonal Frequency Division Multiplexing Systems[J]. Journal of Electronics & Information Technology, 2006, 28(12): 2367-2370.

Citation:

Chen Zhi-gang, Zhang Tai-yi, Zhou Ya-tong. Constant Modulus Based Blind Channel Estimation for Orthogonal Frequency Division Multiplexing Systems[J]. Journal of Electronics & Information Technology, 2006, 28(12): 2367-2370.

Citation:

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Constant Modulus Based Blind Channel Estimation for Orthogonal Frequency Division Multiplexing Systems

Received Date: 2005-03-28
Rev Recd Date: 2005-12-30
Publish Date: 2006-12-19

Abstract

Abstract

A novel blind channel estimation scheme is proposed for Orthogonal Frequency Division Multiplexing (OFDM) systems employing PSK modulation. This scheme is composed of obtaining a small number of possible channels by exploiting the constant modulus property and choosing a best fit over the possible channels by exploiting the finite alphabet property of information signals, thus it has low computation complexity. It estimates the channel by exploiting the second-order statistics rather than the high-order statistics of the received signal, which means that the new algorithm can achieve competitive performance. Simulation results show that the new scheme outperforms the finite-alphabet based channel estimator.

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References(1)

References

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