7th International Conference on Cognitive Radio Oriented Wireless Networks

Research Article

Wideband frequency domain detection using Teager-Kaiser energy operator

Download500 downloads
  • @INPROCEEDINGS{10.4108/icst.crowncom.2012.248336,
        author={Matthieu Gautier and Vincent Berg and Dominique Noguet},
        title={Wideband frequency domain detection using Teager-Kaiser energy operator},
        proceedings={7th International Conference on Cognitive Radio Oriented Wireless Networks},
        publisher={IEEE},
        proceedings_a={CROWNCOM},
        year={2012},
        month={7},
        keywords={wideband sensing wireless microphone teager-kaiser},
        doi={10.4108/icst.crowncom.2012.248336}
    }
    
  • Matthieu Gautier
    Vincent Berg
    Dominique Noguet
    Year: 2012
    Wideband frequency domain detection using Teager-Kaiser energy operator
    CROWNCOM
    IEEE
    DOI: 10.4108/icst.crowncom.2012.248336
Matthieu Gautier1,*, Vincent Berg2, Dominique Noguet2
  • 1: Université de Rennes 1, IRISA, INRIA
  • 2: CEA-LETI, Minatec
*Contact email: matthieu.gautier@irisa.fr

Abstract

This paper addresses wireless microphone sensing in the TV white space and efficient detection of narrowband FM modulation signals. To this end, a wideband frequency domain analysis is proposed. The required Fast Fourier Transform for this operation may be shared between sensing analysis and modulation functions. A particular decision metric is then studied for the analysis of wireless microphone signals based on the Teager-Kaiser energy operator.\ Simulation results show that 6 dB of detection gain could be achieved when using a frequency domain analysis compared to time domain methods. The Teager-Kaiser detection leads to further improvement of 1.5 dB. This performance could be reached at no extra cost in term of complexity.