ChinaCom2009-Wireless Communications and Networking Symposium

Research Article

A Wideband Multi-Resolution Spectrum Sensing Method Based on Belief Propagation

Cite
BibTeX Plain Text
  • @INPROCEEDINGS{10.1109/CHINACOM.2009.5339898,
    author={Peiya Wang and Zhaoyang Zhan and Guanding Yu},
    title={A Wideband Multi-Resolution Spectrum Sensing Method Based on Belief Propagation},
    proceedings={ChinaCom2009-Wireless Communications and Networking Symposium},
    publisher={IEEE},
    proceedings_a={CHINACOM2009-WCN},
    year={2009},
    month={11},
    keywords={},
    doi={10.1109/CHINACOM.2009.5339898}
}
  • Peiya Wang
    Zhaoyang Zhan
    Guanding Yu
    Year: 2009
    A Wideband Multi-Resolution Spectrum Sensing Method Based on Belief Propagation
    CHINACOM2009-WCN
    IEEE
    DOI: 10.1109/CHINACOM.2009.5339898
Peiya Wang1,*, Zhaoyang Zhan1,*, Guanding Yu1,*
  • 1: Institute of Information and Communication Engineering, Zhejiang University, Hangzhou 310027 Zhejiang Provincial Key Laboratory of Information Network Technology, Hangzhou 310027
*Contact email: ning_ming@zju.edu.cn, ning_ming@zju.edu.cn, ning_ming@zju.edu.cn

Abstract

A novel wideband multi-resolution spectrum sensing method is presented in this paper. By exploiting the frequency aliasing effect caused by multi-rate down-sampling, the spectrum activities of multi-channels can be inferred from the resulted spectrum-aliased sample streams. A specially designed Belief Propagation (BP) algorithm is adopted to conduct the above inferring. Simulation results show that this spectrum sensing method has excellent performance. To the best of our knowledge, it is the first algorithm to do multi-channel spectrum sensing based on multi-rate down-sampling and frequency aliasing.

Published
2009-11-20
Publisher
IEEE
Modified
2010-05-16
http://dx.doi.org/10.1109/CHINACOM.2009.5339898
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