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Iterative receiver for OFDM systems based on semi-blind channel estimation

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Journal of Electronics (China)

Abstract

In this paper we propose two iterative algorithms of joint channel estimation and symbol detection for Orthogonal Frequency Division Multiplexing (OFDM) systems. In which, superimposed pilot scheme is adopted and an initial Channel State Information (CSI) is obtained by employing a first-order statistic. In each subsequent iteration, we propose two algorithms to update the CSI. The Mean Square Error (MSE) of channel estimation and Bit Error Rate (BER) performance are given and simulation results demonstrate that the iterative algorithm using method B has good performance approaching the ideal condition.

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Authors and Affiliations

  1. National Mobile Communications Research Laboratory, Southeast University, Nanjing, 210096, China

    Jing Ya (female, Ph.D. student), Xu Xiaodong, Chen Ming & Cheng Shixin

Authors
  1. Jing Ya
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  2. Xu Xiaodong
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  3. Chen Ming
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  4. Cheng Shixin
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Corresponding author

Correspondence to Jing Ya.

Additional information

Supported by National “863” Project (No.2002AA123031).

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Jing, Y., Xu, X., Chen, M. et al. Iterative receiver for OFDM systems based on semi-blind channel estimation. J. of Electron.(China) 24, 163–166 (2007). https://doi.org/10.1007/s11767-005-0154-2

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  • DOI: https://doi.org/10.1007/s11767-005-0154-2

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