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

Peiya Wang; Zhaoyang Zhan; Guanding Yu

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