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Performance analysis of cooperative spectrum monitoring in cognitive radio network

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Abstract

The imperfect spectrum monitoring (SM) is a major obstacle to detect the emergence of primary user (PU) quickly during the cognitive users’ (CUs’) data transmission which results data-loss and introduces the interference at PU. The cooperation in CUs for SM is an effective solution to improve its performance. Therefore, in this paper, a scenario, where CUs can cooperate with each other for SM is presented and have analyzed the effect of cooperation on various performance metrics namely, the data-loss, interference efficiency, and energy efficiency. An algorithm is illustrated for the computation of data-loss under various conditions of the traffic intensity of PU and probability of SM error. Moreover, the closed-form expressions of these metrics are derived for the cooperative and non-cooperative SM. Further, the simulation results are presented for various scenarios of traffic intensity, probability of SM error and channel gain between the CUs’ transmitter to PU receiver. Furthermore, the Monte-Carlo simulation results are exploited to consider the random nature of the PUs’ traffic intensity as well as to support the numerically simulated results.

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Notes

  1. Assumption: The perfect SM system is very quick and ideal, even though a particular packet is required to compute decision statistics.

  2. The subscript NCM represents the non-cooperative spectrum monitoring

  3. The subscript CM represents the cooperative spectrum monitoring.

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Acknowledgements

The authors are sincerely thankful to the editor and anonymous reviewers for their critical comments and suggestions to improve the quality of manuscript. The authors are also grateful to Indian Space Research Organization (ISRO) vide project no. ISRO/Res/4/619/14-15 for financial aid.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, Jaypee University of Information Technology, Waknaghat, 173215, India

    Prabhat Thakur, Alok Kumar, Shweta Pandit & G. Singh

  2. Space Application Centre, Indian Space Research Organization, Ahmedabad, 380015, India

    S. N. Satashia

Authors
  1. Prabhat Thakur
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  2. Alok Kumar
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  3. Shweta Pandit
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  4. G. Singh
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  5. S. N. Satashia
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Corresponding author

Correspondence to G. Singh.

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Thakur, P., Kumar, A., Pandit, S. et al. Performance analysis of cooperative spectrum monitoring in cognitive radio network. Wireless Netw 25, 989–997 (2019). https://doi.org/10.1007/s11276-017-1644-5

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  • DOI: https://doi.org/10.1007/s11276-017-1644-5

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