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Application of a Channel Estimation Algorithm to Spectrum Sensing in a Cognitive Radio Context
Joint Authors
Savaux, Vincent
Djoko-Kouam, Moïse
Skrzypczak, Alexandre
Louet, Yves
Source
International Journal of Antennas and Propagation
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-26
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
This paper deals with spectrum sensing in an orthogonal frequency division multiplexing (OFDM) context, allowing an opportunistic user to detect a vacant spectrum resource in a licensed band.
The proposed method is based on an iterative algorithm used for the joint estimation of noise variance and frequency selective channel.
It can be seen as a second-order detector, since it is performed by means of the minimum mean square error criterion.
The main advantage of the proposed algorithm is its capability to perform spectrum sensing, noise variance estimation, and channel estimation in the presence of a signal.
Furthermore, the sensing duration is limited to only one OFDM symbol.
We theoretically show the convergence of the algorithm, and we derive its analytical detection and false alarm probabilities.
Furthermore, we show that the detector is very efficient, even for low SNR values, and is robust against a channel uncertainty.
American Psychological Association (APA)
Savaux, Vincent& Djoko-Kouam, Moïse& Louet, Yves& Skrzypczak, Alexandre. 2014. Application of a Channel Estimation Algorithm to Spectrum Sensing in a Cognitive Radio Context. International Journal of Antennas and Propagation،Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-1036098
Modern Language Association (MLA)
Savaux, Vincent…[et al.]. Application of a Channel Estimation Algorithm to Spectrum Sensing in a Cognitive Radio Context. International Journal of Antennas and Propagation No. 2014 (2014), pp.1-13.
https://search.emarefa.net/detail/BIM-1036098
American Medical Association (AMA)
Savaux, Vincent& Djoko-Kouam, Moïse& Louet, Yves& Skrzypczak, Alexandre. Application of a Channel Estimation Algorithm to Spectrum Sensing in a Cognitive Radio Context. International Journal of Antennas and Propagation. 2014. Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-1036098
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1036098