Intelligent Decision Making with Improved Energy Detection for Precise Spectrum Sensing in Cognitive Radios

  • K. Muthumeenakshi
  • S. Radha
  • R. Sudharsana
  • R. Tharini
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 325)


Energy detection is best suited for the spectrum sensing when prior knowledge about the licensed user is unavailable. The performance of this technique is primarily influenced by the available test statistic, number of samples used to compute the test statistic and the decision threshold and described in terms of probability of detection and false alarm. This paper focuses on an intelligent sensing scheme with improved energy detection algorithm in which the test statistic is computed using an arbitrary positive power instead of squaring operation. The detection performance is found to be considerably improved compared to the traditional energy detection algorithm. Simulations are performed, and the results confirm the accuracy of the analysis.


Energy detection Wireless communication Cognitive radio Signal-to-noise ratio 


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Copyright information

© Springer India 2015

Authors and Affiliations

  • K. Muthumeenakshi
    • 1
  • S. Radha
    • 1
  • R. Sudharsana
    • 1
  • R. Tharini
    • 1
  1. 1.Department of ECESSN College of EngineeringChennaiIndia

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