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An Effective Method to Reduce Sensibility to CFO in OFDM

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Abstract

For orthogonal frequency-division multiplexing (OFDM) communication systems, the carrier frequency offset (CFO) in mobile radio channels distort the orthogonality between subcarriers resulting in intercarrier interference (ICI). This paper studies an efficient scheme termed all phase method to combat ICI. The method is implemented by introducing all phase concept into standard OFDM system. By numerical calculations, ICI coefficients with all phase method are much smaller than that of standard OFDM. Simultaneously, in the present of CFO, simulation results exhibit the proposed method makes more remarkable improvement in BER performance. Therefore, all phase method is effective to reduce sensibility to CFO.

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Authors and Affiliations

  1. School of Electronic and Information Engineering, Tianjin University, 300072, Tianjin, China

    LiYa Ding, ChunPing Hou & ZhaoHua Wang

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  1. LiYa Ding
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  2. ChunPing Hou
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  3. ZhaoHua Wang
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Correspondence to LiYa Ding.

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Ding, L., Hou, C. & Wang, Z. An Effective Method to Reduce Sensibility to CFO in OFDM. Wireless Pers Commun 57, 671–679 (2011). https://doi.org/10.1007/s11277-009-9868-z

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  • DOI: https://doi.org/10.1007/s11277-009-9868-z

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