An Improved DFT-Based Channel Estimation Algorithm for OFDM System on Time-Varying Multipath Fading Channels

Xin Li Ma; Tong Liang Fan; Yong Feng Du

doi:10.4028/www.scientific.net/AMR.989-994.3786

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 989-994An Improved DFT-Based Channel Estimation Algorithm...

An Improved DFT-Based Channel Estimation Algorithm for OFDM System on Time-Varying Multipath Fading Channels

Abstract:

An improved discrete Fourier transform DFT-based channel estimation for OFDM systems is proposed. Conventional DFT-based channel estimator improved its performance by suppressing noise, but it does not completely suppress noise. In order to overcome the disadvantage, this paper proposed a gate method without requiring any channel statistical information. This method comprehensively considersthe effects of the power of the strongest path and the noises. Computer simulation demonstrates the performance of the proposed algorithms in terms of bit error rate.

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Periodical:

Advanced Materials Research (Volumes 989-994)

Pages:

3786-3789

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.989-994.3786

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Online since:

July 2014

Authors:

Xin Li Ma*, Tong Liang Fan, Yong Feng Du

Keywords:

Channel Estimation, Channel Impulse Response (CIR), Gate Processing, OFDM

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References

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