Journal of Communications and Networks

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Robust Approach for Channel Estimation in Power Line Communication

  • Huang, Jiyan (Department of Electronic Engineering, University of Electronic Science and Technology of China) ;
  • Wang, Peng (Taiyuan University of Technology, China and Nanyang Technological University) ;
  • Wan, Qun (Department of Electronic Engineering, University of Electronic Science and Technology of China)
  • Received : 2011.06.15
  • Accepted : 2012.02.20
  • Published : 2012.06.30
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Abstract

One of the major problems for accurate channel estimation in power line communication systems is impulsive noise. Traditional channel estimation algorithms are based on the assumption of Gaussian noise, or the need to locate the positions of impulsive noise. The algorithms may lose optimality when impulsive noise exists in the channel, or if the location estimation of impulsive noise is inaccurate. In the present paper, an effective channel estimation algorithm based on a robust cost function is proposed to mitigate impulsive noise. The proposed method can provide a closed-form solution, and the application of robust estimation theory enables the proposed method to be free from localization of impulsive noise and thus can guarantee that the proposed method has better performance. Simulations verified the proposed algorithm.

Keywords

References

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