Spectrum Sensing Techniques for OFDM Signals in Cognitive Radio 


Vol. 42,  No. 9, pp. 1726-1732, Sep.  2017
10.7840/kics.2017.42.9.1726


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  Abstract

Cognitive radio allows secondary users to access the idle frequency bands of primary users opportunistically and has been recognized as a promising approach to the problem of scarcity of radio spectrum which has been deteriorating recently. A crucial element of cognitive radio is the functionality of spectrum sensing which determines whether some frequency band is occupied by a primary user or not. In recent years, OFDM based transmission techniques have been widely adopted in wireless communication systems such LTE and WLAN, et. al. Thus there now exist many primary users using OFDM based transmission systems. Therefore spectrum sensing strategies for OFDM based signals are getting more important than ever. Motivated by this, we introduce some of spectrum sensing methods for OFDM based signals which have been published in the literature.

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  Cite this article

[IEEE Style]

C. H. Lim, "Spectrum Sensing Techniques for OFDM Signals in Cognitive Radio," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 9, pp. 1726-1732, 2017. DOI: 10.7840/kics.2017.42.9.1726.

[ACM Style]

Chang Heon Lim. 2017. Spectrum Sensing Techniques for OFDM Signals in Cognitive Radio. The Journal of Korean Institute of Communications and Information Sciences, 42, 9, (2017), 1726-1732. DOI: 10.7840/kics.2017.42.9.1726.

[KICS Style]

Chang Heon Lim, "Spectrum Sensing Techniques for OFDM Signals in Cognitive Radio," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 9, pp. 1726-1732, 9. 2017. (https://doi.org/10.7840/kics.2017.42.9.1726)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880