A Low Complexity and Robust Frequency Offset Estimation Algorithm for OFDM-Based WLAN Systems

  • Sanghun Kim
  • Seokho Yoon
  • Hyoung-Kee Choi
  • Sun Yong Kim
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3992)


This paper addresses the frequency offset estimation problem in the presence of the timing error for OFDM-based WLAN systems. When the timing error exists, the correlation value used for the frequency offset estimation could be reduced significantly due to the timing error, resulting in considerable degradation in estimation performance. In this paper, using the coherence phase bandwidth (CPB) and a threshold, a novel frequency offset estimation algorithm is proposed and based on which, an efficient timing error estimation algorithm is also proposed for the re-estimation of the frequency offset.


Estimation Algorithm Orthogonal Frequency Division Multiplex Additive White Gaussian Noise Timing Error Orthogonal Frequency Division Multiplex System 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Sanghun Kim
    • 1
  • Seokho Yoon
    • 1
  • Hyoung-Kee Choi
    • 1
  • Sun Yong Kim
    • 2
  1. 1.School of Information and Communication EngineeringSungkyunkwan UniversitySuwon, Kyunggi-doKorea
  2. 2.Department of Electronics EngineeringKonkuk UniversitySeoulKorea

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