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

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• 作者：Ruiyan Du (1) (2)
  Jinkuan Wang (1) (2)
  Fulai Liu (1) (2)
  
• 关键词：Carrier frequency offset (CFO) ; Orthogonal frequency ; division multiple ; access (OFDMA) ; Parameter estimation
• 刊名：Wireless Personal Communications
• 出版年：2013
• 出版时间：April 2013
• 年：2013
• 卷：69
• 期：4
• 页码：1615-1627
• 全文大小：451KB
• 参考文献：1. IEEE Standard for Local and Metropolitan Area Networks. (2004). / Part 16: Air interface for fixed broadband wireless access systems-amendment 2. IEEE Std. 802.16.
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• 作者单位：Ruiyan Du (1) (2)
  Jinkuan Wang (1) (2)
  Fulai Liu (1) (2)
  
  1. School of Information Science and Engineering, Northeastern University, Shenyang, China
  2. Engineering Optimization and Smart Antenna Institute, Northeastern University at Qinhuangdao, Qinhuangdao, China
  
• ISSN：1572-834X

文摘

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.