Implementation of Spectrum Sensing Module using STFT Method

STFT 기법을 적용한 스펙트럼 센싱 모듈 구현

  • 이현소 (충북대학교 전파통신공학과) ;
  • 강민규 (충북대학교 전파통신공학과) ;
  • 문기탁 (충북대학교 전파통신공학과) ;
  • 김경석 (충북대학교 전파통신공학과)
  • Published : 2010.01.28


The Spectrum Sensing Technology is the core technology of the Cognitive Radio (CR) System that is one of the future wireless communication technologies. In this paper, we proposed the efficient Spectrum Sensing Method using the Short Time Fourier Transform (STFT) that is the algorithm for Time-Frequency analysis of the raw data. Applied window function to STFT algorithm is a Kaiser window, it is piled up its 50% range. For the simulation, the DVB-H signal with the 6MHz bandwidth is used as the Input Signal. And we confirm the Spectrum Sensing result using Modified Periodogram Method, Welch's Method for compared with Short Time Fourier Transform Algorithm. And also, Spectrum Sensing Module is implemented using embedded board.


Spectrum Sensing;Short Time Fourier Transform;Cognitive Radio


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