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Cyclostationarity-based OFDM signal sensing over doubly-selective fading channels

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Journal of Electronics (China)

Abstract

In this paper, using cyclostationarity-based sensing method to detect the presence of Orthogonal Frequency Division Multiplexing (OFDM) signal over doubly-selective fading channels is studied. By approximating the channel with Basis Expansion Model (BEM), we derive the second-order cyclostationary statistics of the received OFDM signal over doubly-selective fading channels. Theoretical analysis indicates that new cyclostationary signatures produced by Doppler spread and multipath delay can be further exploited in the detecting process. Simulation examples demonstrate that the sensing methods using channel-induced cyclostationary features provide substantial improvements on detection performance.

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Authors and Affiliations

  1. Key Laboratory of Wireless Sensor Network & Communications, SIMIT, Chinese Academy of Science, Shanghai, 200335, China

    Jinfeng Tian, Yonglei Jiang, Huaxia Chen & Honglin Hu

  2. Shanghai Research Center for Wireless Communications, Shanghai, 200335, China

    Jinfeng Tian, Yonglei Jiang, Huaxia Chen & Honglin Hu

  3. Key Laboratory of Wireless Sensor Network & Communications, SIMIT, CAS, Shanghai Research Center for Wireless Communications, Shanghai, 200335, China

    Honglin Hu

Authors
  1. Jinfeng Tian
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  2. Yonglei Jiang
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  3. Huaxia Chen
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  4. Honglin Hu
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Corresponding author

Correspondence to Honglin Hu.

Additional information

Supported by the National Natural Science Foundation of China (No. 61002017 and No. 61072076), the STCSM and Shanghai Rising-Star Program (10JC1414400).

Communication author: Hu Honglin, born in 1975, male, Professor. Key Laboratory of Wireless Sensor Network & Communications, SIMIT, CAS, Shanghai Research Center for Wireless Communications, Shanghai 200335, China.

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Tian, J., Jiang, Y., Chen, H. et al. Cyclostationarity-based OFDM signal sensing over doubly-selective fading channels. J. Electron.(China) 28, 1–7 (2011). https://doi.org/10.1007/s11767-011-0488-x

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  • DOI: https://doi.org/10.1007/s11767-011-0488-x

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