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Cognitive Radio Concept and Challenges in Dynamic Spectrum Access for the Future Generation Wireless Communication Systems

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Abstract

Recently, the Dynamic Spectrum Access (DSA) techniques are proposed to solve the problem of spectrum scarcity and help to use the limited spectrum resource as effectively as possible. The current ongoing spectrum reform opens up the possibilities to exploit the DSA techniques. This paper aims to provide a critical review on the various ongoing efforts towards the use of DSA concept for the frequency management of future wireless communications systems, especially from the Cognitive Radio (CR) perspective. The CR aims for an efficient and dynamic access to the spectrum, and provides a new method of spectrum management. This paper also highlights the various challenges associated with CR in order to realize the concept of DSA.

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Authors and Affiliations

  1. Birla Institute of Technology, Mesra, Ranchi, India

    Sanjay Kumar, Janardan Sahay, Gajendra Kant Mishra & Sanjeet Kumar

Authors
  1. Sanjay Kumar
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  2. Janardan Sahay
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  3. Gajendra Kant Mishra
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  4. Sanjeet Kumar
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Correspondence to Sanjay Kumar.

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Kumar, S., Sahay, J., Mishra, G.K. et al. Cognitive Radio Concept and Challenges in Dynamic Spectrum Access for the Future Generation Wireless Communication Systems. Wireless Pers Commun 59, 525–535 (2011). https://doi.org/10.1007/s11277-011-0243-5

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  • DOI: https://doi.org/10.1007/s11277-011-0243-5

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