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Article citations


Visotsky, E., Kuffner, S. and Peterson, R. (2005) On Collaborative Detection of TV Transmissions in Support of Dynamic Spectrum Sharing. Proceedings of the 1st IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, Baltimore, 8-11 November 2005, 338-345.

has been cited by the following article:

  • TITLE: An Intelligent Fuzzy Based Energy Detection Approach for Cooperative Spectrum Sensing

    AUTHORS: Sitadevi Bharatula, Meenakshi Murugappan

    KEYWORDS: Cognitive Radio (CR), Spectrum Sensing, Fuzzy System, Dynamic Spectrum Access, Energy Detection Scheme

    JOURNAL NAME: Circuits and Systems, Vol.7 No.6, May 27, 2016

    ABSTRACT: Cognitive radio systems are helpful to access the unused spectrum using the popular technique, referred to as spectrum sensing. Spectrum sensing involves the detection of primary user (PU) signal using dynamic spectrum access. Cooperative spectrum sensing takes advantage of the spatial diversity in multiple cognitive radio user networks to improve the sensing accuracy. Though the cooperative spectrum sensing schemes significantly improve the sensing accuracy, it requires the noise variance and channel state information which may lead to transmission overhead. To overcome the drawbacks in conventional cooperative spectrum sensing, this paper proposes a fuzzy system based cooperative spectrum sensing. Selection combining (SC) and maximum ratio combining (MRC) are used at fuzzy based fusion center to obtain the value of the sensing energy. These energy values are utilized in finding the presence of PU, results in improved sensing accuracy. In addition, an intelligent fuzzy fusion algorithm determines the PU presence without the channel state information based on multiple threshold values. Simulation results show that the proposed scheme outperforms the existing schemes in terms of sensing accuracy.