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Cooperative Spectrum Handovers in Cognitive Radio Networks

  • Anandakumar. H
  • Umamaheswari. K
Chapter
Part of the EAI/Springer Innovations in Communication and Computing book series (EAISICC)

Abstract

Cognitive radio systems require the absorption of cooperative spectrum sensing among cognitive network users to increase the reliability of detection. We have found that cooperative spectrum sensing is not only advantageous but is also essential to avoid interference with any primary network users. Interference by licensed users becomes a chief concern and issue, which affects primary as well as secondary users leading to restrictions in spectrum sensing in cognitive radios. Cognitive radio spectrum sensing ability to identify and make use of vacant spaces in the spectrum without causing any interference to the primary user is elaborately studied. An overview about spectrum sensing is given, and an effective system model based on conventional and cooperative sensing model is proposed. It is reviewed along with various cooperative handover factors, and a dynamic technique called CUSUM algorithm is devised. The efficiency of the proposed cooperative CUSUM spectrum sensing algorithm performs better than existing optimal rules based on a single observation spectrum sensing techniques under cooperative networks.

Keywords

Cognitive radio networks Spectrum Cooperative communication Handovers CUSUM 

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • Anandakumar. H
    • 1
  • Umamaheswari. K
    • 2
  1. 1.Department of Computer Science and EngineeringSri Eshwar College of EngineeringCoimbatoreIndia
  2. 2.Department of Information TechnologyPSG College of TechnologyCoimbatoreIndia

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