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International Conference on Cognitive Radio Oriented Wireless Networks

CrownCom 2016: Cognitive Radio Oriented Wireless Networks pp 511–523Cite as

Experimental Study of an Underlay Cognitive Radio System: Model Validation and Demonstration

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Abstract

Cognitive radio is one of the potential contenders that address the problem of spectrum scarcity by making efficient use of the currently allocated spectrum below 6 GHz. A secondary access to the licensed spectrum is only possible, if the cognitive radio systems restrict the interference to the primary systems. However, the performance analysis of such a cognitive radio system is a challenging task. Currently, performance evaluation of underlay systems is limited to theoretical analysis. Most of the existing theoretical investigations make certain assumptions in order to sustain analytical tractability, which could be unrealistic from the deployment perspective. Motivated by this fact, in this work, we validate the performance of an underlay system by means of laboratory measurements, and consequently propose a hardware demonstrator of such a system. Moreover, we present a graphical user interface to provide insights to the working of the proposed demonstrator and highlight the main issues faced during this experimental study. (This work was partially supported by the National Research Fund, Luxembourg under the CORE projects “SeMIGod” and “SATSENT”.)

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Notes

  1. 1.

    In [9], we discovered a small typing error in the cdf of \(P_\text {p}\), in this paper, we present the exact version of it.

  2. 2.

    As noise power, we used the measured receiver noise floor.

  3. 3.

    For varying \(\theta _\text {I}\), while the shape of the curves changed slightly, the upper limits for \(\tau _\text {opt}\) remained constant.

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Authors and Affiliations

  1. Communications Engineering Lab, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany

    Hanna Becker, Ankit Kaushik & Friedrich Jondral

  2. SnT - Securityandtrust.lu, University of Luxembourg, Luxembourg City, Luxembourg

    Shree Krishna Sharma & Symeon Chatzinotas

Authors
  1. Hanna Becker
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  2. Ankit Kaushik
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  3. Shree Krishna Sharma
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  4. Symeon Chatzinotas
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  5. Friedrich Jondral
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Corresponding author

Correspondence to Hanna Becker .

Editor information

Editors and Affiliations

  1. CEA-LETI , Grenoble, France

    Dominique Noguet

  2. University of Surrey, Guildford, United Kingdom

    Klaus Moessner

  3. CentraleSupélec – Campus de Rennes, Institut d'Électronique et de Télécommunications de Rennes UMR CNRS 6164, Cesson-Sévigné, France

    Jacques Palicot

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© 2016 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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Becker, H., Kaushik, A., Sharma, S.K., Chatzinotas, S., Jondral, F. (2016). Experimental Study of an Underlay Cognitive Radio System: Model Validation and Demonstration. In: Noguet, D., Moessner, K., Palicot, J. (eds) Cognitive Radio Oriented Wireless Networks. CrownCom 2016. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 172. Springer, Cham. https://doi.org/10.1007/978-3-319-40352-6_42

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  • DOI: https://doi.org/10.1007/978-3-319-40352-6_42

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-40351-9

  • Online ISBN: 978-3-319-40352-6

  • eBook Packages: Computer ScienceComputer Science (R0)

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