Window functions for frame correlation reduction in overlapped FFT based energy detection

Ryo Takai, Shoya Uchida, Yukitoshi Sanada

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    Overlapped FFT based energy detection has been proposed as a signal detection scheme in dynamic spectrum access. The overlapped FFT scheme increases the number of FFT frames to reduce the variance of squared noise and improves the detection performance. As the FFT frames are overlapped, correlation values between the frames affect to the detection performance. This paper proposes the window functions which decrease the correlation values between adjacent FFT bins. Numerical results obtained through computer simulation show that novel window functions generated by upsampling a Hamming window improves the detection performance by 0.09.

    Original languageEnglish
    Title of host publication2014 IEEE 80th Vehicular Technology Conference, VTC2014-Fall, Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781479944491, 9781479944491
    DOIs
    Publication statusPublished - 2014 Nov 24
    Event80th IEEE Vehicular Technology Conference, VTC 2014-Fall - Vancouver, Canada
    Duration: 2014 Sep 142014 Sep 17

    Publication series

    NameIEEE Vehicular Technology Conference
    ISSN (Print)1550-2252

    Other

    Other80th IEEE Vehicular Technology Conference, VTC 2014-Fall
    CountryCanada
    CityVancouver
    Period14/9/1414/9/17

    ASJC Scopus subject areas

    • Computer Science Applications
    • Electrical and Electronic Engineering
    • Applied Mathematics

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