Cluster Computing

, Volume 22, Supplement 5, pp 11109–11118 | Cite as

Classical energy detection method for spectrum detecting in cognitive radio networks by using robust augmented threshold technique

  • B. SaralaEmail author
  • D. Rukmani Devi
  • D. S. Bhargava


Spectrum detecting is the essential and crucial mechanisms of cognitive radio (CR) to the invention the unemployed spectrum. CR system has been suggested as a conceivable resolution for enhancing the spectrum use by empowering unprincipled spectrum sharing. The principal prerequisite for enabling CR to utilize authorized range on an optional premise is not making interfering to primary users. The principal goal of CR is to use rare and limited natural resource efficiently with no obstruction to the primary users (PUs). This work presents an overview of CR architecture, discusses the characteristics and benefits of a CR. Energy identification, matched channel filter detection, and cyclostationary recognitions are most conventional techniques for spectrum sensing. The explanation behind picking energy detection procedure, it did not need any previous info from the primary user transmission. Additionally, the particular result of energy detection technique corrupts with a lower sign to noise ratio (SNR) level signal area. General detection performance of energy detection exceptionally depends upon noise, mainly while the SNR is low for PU. To consider this issue, this paper shows a remarkable, augmented threshold model for efficient energy detection procedure to improve the detection execution at low SNR level. The simulation results demonstrate the energy detection performance utilizing proposed system model is excellent than a fixed threshold at low SNR signal areas.


Cognitive radios Spectrum sensing Energy detection Augmented threshold method 


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© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  1. 1.R.M.K Engineering CollegeKavaraipettaiIndia
  2. 2.R.M.D Engineering CollegeKavaraipettaiIndia

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