Computer Science

Computer Science ›› 2018, Vol. 45 ›› Issue (6A): 266-269.

• Network & Communication • Previous Articles     Next Articles

Novel Energy Detection Method and Detection Performance Analysis

CAO Kai-tian1,2,HANG Yi-ling2   

  1. Key Lab of Broadband Wireless Communication and Sensor Network Technology,Ministry of Education, Nanjing University of Posts and Telecommunications,Nanjing 210003,China1
    College of Telecommunications and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China2
  • Online:2018-06-20 Published:2018-08-03

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Abstract: In order to overcome the disadvantage that the existing small sample size-based energy detection (ED) me-thods only obtain the approximations of detection performance of ED in AWGN (Additive White Gaussian Noise),a more tractable and more accurate closed-form expression for detection probability of ED in Rayleigh fading channel was derived and its performance was analyzed by exploiting the latest research result of generalized Marcum Q-function in this paper.Both theoretical analysis and simulation results show that compared with the approximate analysis of ED detection performance such as the CLT (Central Limit Theorem)-based approach,the CoG (Cube-of-Gaussian)-based me-thod and other approximations,the proposed scheme has more robust and accurate detection performance.

Key words: Cognitive radio, Detection performance, Energy detection, Meijer’s G function, Spectrum sensing

CLC Number: 

  • TN301
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