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Unitary-ESPRIT Algorithm for Carrier Frequency Offset Estimation for Interleaved OFDMA Uplink Systems

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Abstract

The carrier frequency offset (CFO) estimation is an important task for orthogonal frequency-division multiple-access (OFDMA) systems. Making use of the intrinsic periodic structure of the received signal samples, an effective Unitary-ESPRIT algorithm based on unitary transformation technique is proposed for the CFO estimation problem. Compared with other recently proposed CFO estimation approaches, the proposed algorithm offers a number of advantages. Firstly, the presented approach can reduce the computation complexity considerably, since it is efficiently formulated in terms of real-valued computation except for the data preprocessing. Secondly, it can provide better CFO estimation performance by incorporating the data stacking technology and the unitary transformation, etc. Simulation results demonstrate the efficacy of the proposed algorithm.

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Authors and Affiliations

  1. School of Information Science and Engineering, Northeastern University, Shenyang, China

    Ruiyan Du, Jinkuan Wang & Fulai Liu

  2. Engineering Optimization and Smart Antenna Institute, Northeastern University at Qinhuangdao, Qinhuangdao, China

    Ruiyan Du, Jinkuan Wang & Fulai Liu

Authors
  1. Ruiyan Du
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  2. Jinkuan Wang
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  3. Fulai Liu
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Correspondence to Ruiyan Du.

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Du, R., Wang, J. & Liu, F. Unitary-ESPRIT Algorithm for Carrier Frequency Offset Estimation for Interleaved OFDMA Uplink Systems. Wireless Pers Commun 69, 1615–1627 (2013). https://doi.org/10.1007/s11277-012-0654-y

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  • DOI: https://doi.org/10.1007/s11277-012-0654-y

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